1 . 2-[2-{-2-2(2+2)}]=?

• A. 6
• B. -4
• C. 4
• D. None of these

Answer: Option D

Explanation:

2 . 1-a2+2ab-b2

• A. $\left(1+a-b\right)\left(1-a+b\right)$
• B. $\left(1+a+b\right)\left(1-a+b\right)$
• C. $\left(1+a+b\right)\left(1-a-b\right)$
• D. $\left(1-a+b\right)\left(1-a-b\right)$

Answer: Option A

Explanation:

3 . x2-y2+2y-1

• A. $x+y+1$
• B. $x-y$
• C. $x+y-1$
• D. $x-y-1$

Answer: Option C

Explanation:

4 . 12+22+32+.....+x2

• A. $\frac{x\left(x+1\right)\left(2x+1\right)}{6}$
• B. $\frac{x\left(x+1\right)}{2}$
• C. $x$
• D. ${\left\{\frac{x\left(x+y\right)}{2}\right\}}^2$

Answer: Option A

Explanation:

5 . x2+2x,x3+8

• A. $x+2$
• B. $x-2$
• C. $x\left(x+2\right)\left(x-2\right)$
• D. $x^2+4x+4$

Answer: Option A

Explanation:

6 . a2+b2-c2+2aba2-b2+c2+2ac=?

• A. $a+b+c$
• B. $\frac{a+b-c}{a-b+c}$
• C. $\frac{a-b+c}{a+b-c}$
• D. $\frac{a+b-c}{a+b+c}$

Answer: Option B

Explanation:

7 . x+y=8

• A. $64$
• B. $72$
• C. $70$
• D. $68$

Answer: Option D

Explanation:

8 . X+Y=8

• A. $64$
• B. $72$
• C. $70$
• D. $68$

Answer: Option D

Explanation:

9 . 2y4-14y2+2

• A. $\left(2y^2+6y+2\right)\left(y^2-3y+1\right)$
• B. $\left(2y^2-7y+1\right)\left(2y^2+7y+1\right)$
• C. $\left(2y^2+3y+1\right)\left(y^2-3y+1\right)$
• D. $2\left(y^2+3y+1\right)\left(y^2-3y+1\right)$

Answer: Option C

Explanation:

10 . a2+2ab-2b-1

• A. a+1
• B. b+1
• C. a-2
• D. a-1

Answer: Option D

Explanation:

11 . a2+2ab-c

• A. 1
• B. 2
• C. 4
• D. 6

Answer: Option B

Explanation:

12 . 1-a2+2ab-b2

• A. (1+a+b)(1-a+b)
• B. (1+a+b)(1-a-b)
• C. (1+a+b)(1+a-b)
• D. (1+a-b)(1-a+b)

Answer: Option D

Explanation:

13 . x2-y2+2y-1

• A. $x+y+1$
• B. $x-y+1$
• C. $x-y-1$
• D. $x-y$

Answer: Option B

Explanation:

14 . x2-y2+2x+1

• A. x+y-1
• B. 1-x-y
• C. x-y-1
• D. x+y+1

Answer: Option D

Explanation:

15 . 9x2+25y2=225

• A. 15 π
• B. 10 π
• C. 20 π
• D. 25 π

Answer: Option A

Explanation:

16 . x2+y2+2gx+2∫y+c=0

• A. $g^2>c$
• B. $g^2<c$
• C. ${\int }^2>c$
• D. ${\int }^2<c$

Answer: Option A

Explanation:

17 . 2x2+2y2-18=0

• A. 3
• B. 5
• C. 4
• D. $4\sqrt{2}$

Answer: Option B

Explanation:

18 . x2+2x-2=0

• A. 1
• B. -1
• C. 2
• D. -2

Answer: Option A

Explanation:

19 . y=x2+2x+6

• A. 2x - y + 6 = 0
• B. 2x + y + 6 = 0
• C. x - 2y + 12 = 0
• D. x+ 2y - 12 - 0

Answer: Option D

Explanation:

20 . x2+y2+2x+3y+11=0

• A. 2x+1=0
• B. 2x+y=0
• C. x+y=0
• D. x+2y=0

Answer: Option D

Explanation:

21 . limx→12x2-2k+1x2+2x+kx-1=-6

• A. 1
• B. -1
• C. 3
• D. $-\frac{1}{2}$

Answer: Option C

Explanation:

22 . 9x2+25y2=225 উপবৃত্ত এর উৎকেন্দ্রিকতা কত?

• A. 4/5
• B. 3/4
• C. 1/2
• D.

Answer: Option A

Explanation:

23 . 5x2+2y+30x+59=0 এর অক্ষরেখার সমীকরণ -

• A. x+3=0
• B. x+4=0
• C. x+1=0
• D.

Answer: Option A

Explanation:

24 . 2x2+2y2+6x+10y−1=0 বৃত্তের ব্যাসার্ধ r হলে, r=?

• A. 1
• B. 3
• C. √6
• D. √3

Answer: Option B

Explanation:

25 . 8x3+72x2+216x+216

• A. 5,00,000
• B. 5,12,000
• C. 4,50,000
• D. 5,50,000

Answer: Option B

Explanation:

26 . a2+b2+c2+2ab-2bc

• A. -2ab
• B. 2bc
• C. 2ca
• D. -2ca

Answer: Option D

Explanation:

27 . x + 1x = 3

• A. $\frac{5}{3}$
• B. $\frac{4}{3}$
• C. $\frac{3}{4}$
• D. $\frac{3}{5}$

Answer: Option D

Explanation:

28 . 2a2+2b2=?

• A. ৯৬
• B. ১২০
• C. ১৬০
• D. ২৪০

Answer: Option C

Explanation:

29 . a2+2ab-2b-1

• A. a+1
• B. b+1
• C. a-2
• D. a-1

Answer: Option D

Explanation:

30 . 2x2+2y2-4x-12+11=0

• A. $\sqrt{29}$
• B. $\sqrt{15.5}$
• C. $\sqrt{4.5}$
• D. $\sqrt{10.5}$

Answer: Option A

Explanation:

31 . 16a2+24ab+b2

• A. 1
• B. -1
• C. 5
• D. -6

Answer: Option A

Explanation:

32 . (0.5)2+20.09

• A. 5
• B. 50
• C. 25
• D. 0.5

Answer: Option C

Explanation:

33 . x2y2+2xy

• A. 2xy
• B. $2y^2$
• C. 1
• D. -1

Answer: Option C

Explanation:

34 . x2-y2+2x+1

• A. x+y-1
• B. x-y+1
• C. 2x-y-1
• D. 1+y

Answer: Option B

Explanation:

35 . a2+2ab-2b-1

• A. (a-b)(a+2b+1)
• B. (a+1)(a+2b+1)
• C. (a+1)(a+2b-1)
• D. (a-1)(a-2b-1)

Answer: Option A

Explanation:

36 . g x =ax2+24

• A. 8
• B. 0
• C. -1
• D. -8

Answer: Option A

Explanation:

37 . -4a2+23a+6

• A. (6 - a)(4a - 1)
• B. (a - 6)(4a + 1)
• C. (a - b)(4a - 1)
• D. (6 - a)(4a + 1)

Answer: Option D

Explanation:

38 . y=3x2+2x-1

• A. 0
• B. 8
• C. 14
• D. 16

Answer: Option C

Explanation:

39 . x2+2 x4-2x2+4

• A. $x^2+8$
• B. $x^3+8$
• C. $x^4-4$
• D. $x^6-8$

Answer: Option A

Explanation:

40 . ab+bc=6,a2b2+b2a2+2

• A. $40$
• B. $36$
• C. $32$
• D. $30$

Answer: Option B

Explanation:

41 . a+b=-c

• A. $-c^2$
• B. $c^2$
• C. $bc$
• D. $ca$

Answer: Option B

Explanation:

42 . Simplify(0.5)2+20.09

• A. $5$
• B. $50$
• C. $25$
• D. $0.5$

Answer: Option C

Explanation:

43 . x2-y2+2y-1

• A. $x+y+1$
• B. $x-y+2xy$
• C. $x+y-1$
• D. $x-y-1$

Answer: Option C

Explanation:

44 . -4a2+23a+6

• A. $\left(6-a\right)\left(4a+1\right)$
• B. $\left(a-6\right)\left(4a+1\right)$
• C. $\left(a-6\right)\left(4a-1\right)$
• D. $\left(6-a\right)\left(4a-1\right)$

Answer: Option A

Explanation:

45 . 212+212+212+212=?

• A. $2^{12}$
• B. $2^{14}$
• C. $2^{16}$
• D. $2^{48}$

Answer: Option B

Explanation:

46 . x=2,

• A. $1211$
• B. $1231$
• C. $1221$
• D. $1233$

Answer: Option D

Explanation:

47 . 12+22+32......+102=385,

• A. $1,155$
• B. $1,540$
• C. $1,925$
• D. $3,465$

Answer: Option D

Explanation:

48 . 4x2-16

• A. $x+2$
• B. $x-2$
• C. $x+4$
• D. $2\left(x+2\right)$

Answer: Option D

Explanation:

49 . 16x2+25y2=400

• A. $20 \mathrm{\pi }$
• B. $10 \mathrm{\pi }$
• C. $100 \mathrm{\pi }$
• D. $50 \mathrm{\pi }$

Answer: Option A

Explanation:

50 . x2+y2+2kx+8y+c=0

• A. 16
• B. 4
• C. -4
• D. -16

Answer: Option A

Explanation:

51 . x=5t2+2t+3

• A. $2m{s}^{-1}$
• B. $5m{s}^{-1}$
• C. $7m{s}^{-1}$
• D. $10m{s}^{-1}$

Answer: Option A

Explanation:

52 . x2+y2+2x+4y+1=0

• A. $7x-5y+15=0$
• B. $7x+5y-15=0$
• C. $5x+7y+15=0$
• D. $5x+7y-15=0$

Answer: Option C

Explanation:

53 . 2+2

• A. $2$
• B. $\sqrt{2}$
• C. $০$
• D. $৪$

Answer: Option A

Explanation:

54 . 9x2+25y2=225

• A. $\frac{25}{2}$
• B. $25$
• C. $\frac{15}{2}$
• D. $5$

Answer: Option A

Explanation:

55 . 2x2+2y2-4x-6y+20=0

• A. $13\sqrt{2}$
• B. $6\sqrt{2}$
• C. $6$
• D. $13$

Answer: Option C

Explanation:

56 . 9x2+25y2=225

• A. $\frac{3}{5}$
• B. $\frac{1}{2}$
• C. $\frac{4}{5}$
• D. $\frac{3}{4}$

Answer: Option C

Explanation:

57 . x2+2xy+y2=25

• A. $\pm 5$
• B. $\pm 10$
• C. $\pm 13$
• D. $\pm 4$

Answer: Option A

Explanation: