Factorisation Test

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Factorisation Test - 7

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Weekly Quiz Competition

Question 1
1 / -0

Factorization: 7 − 12x − 4x²

A
(1−2x)(7+2x)

B
(1−2x)(7−2x)

C
(1−x)(7+x)

D
(1+2x)(4+x)
Question 2
1 / -0

Factorization ;1 − 18z − 63z²

A
(3−21z)(1+3z)

B
(1−21z)(1+3z)

C
(2+21z)(1+3z)

D
(1−7z)(1+2z)
Question 3
1 / -0

Factorization: x² − 17x − 84

A
(x−3)(x+4)

B
(x−21)(x+4)

C
(x−21)(x−4)

D
(x+21)(x+4)
Question 4
1 / -0

Factorization: 3x²− 4x − 7

A
(3x+7)(x+1)

B
(3x−7)(x−1)

C
(3x−7)(x+1)

D
(3x−5)(x+2)
Question 5
1 / -0

Factorization: 2x² − 7x − 30

A
(2x+5)(x−6)

B
(2x+5)(x+6)

C
(2x−5)(x−6)

D
(2x+2)(x−3)
Question 6
1 / -0

Factorization: 10 + 3x − x²

A
(2+x)(5−x)

B
(2+x)(5+x)

C
(2+x)(3−x)

D
(2+3x)(2−x)
Question 7
1 / -0

Factorization: x² − 3ax − 88a²

A
(x−11a)(x−8a)

B
(x−11a)(x+8a)

C
(x+11a)(x+8a)

D
(x−9a)(x+4a)
Question 8
1 / -0

Factorization: 2x³ + 5x − 12xy²

A
x(x+2y)(2x+3y)

B
x (x+4y)(2x−3y)

C
x(x−4y)(2x−3y)

D
x(x+2y)(x−3y)
Question 9
1 / -0

Factorization: x²y² − 12xy − 45

A
(xy−15)(xy+3)

B
(xy+15)(xy+3)

C
(xy−15)(xy−3)

D
(x−15)(y+3)

Solution

x²y² − 12xy + 45 Here xy is a combined entity which we can call m = xy. ⇒ m² − 12m + 45 = (m − 15)(m + 3) Now, put back m = xy.
Question 10
1 / -0

The degree of −3x³ + 5x² + 4 is

A
1

B
2

C
3

D
4

Solution

Degree of a polynomial is degree of highest term highest term =−3x³. Power of 'x' variable in highest term is 3 (as it isx³).

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Re-Attempt Weekly Quiz Competition

Factorisation Test - 7

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Factorisation Test - 7

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SHARING IS CARING

Question 1

(1−2x)(7+2x)

(1−2x)(7−2x)

(1−x)(7+x)

(1+2x)(4+x)

Question 2

(3−21z)(1+3z)

(1−21z)(1+3z)

(2+21z)(1+3z)

(1−7z)(1+2z)

Question 3

(x−3)(x+4)

(x−21)(x+4)

(x−21)(x−4)

(x+21)(x+4)

Question 4

(3x+7)(x+1)

(3x−7)(x−1)

(3x−7)(x+1)

(3x−5)(x+2)

Question 5

(2x+5)(x−6)

(2x+5)(x+6)

(2x−5)(x−6)

(2x+2)(x−3)

Question 6

(2+x)(5−x)

(2+x)(5+x)

(2+x)(3−x)

(2+3x)(2−x)

Question 7

(x−11a)(x−8a)

(x−11a)(x+8a)

(x+11a)(x+8a)

(x−9a)(x+4a)

Question 8

x(x+2y)(2x+3y)

x (x+4y)(2x−3y)

x(x−4y)(2x−3y)

x(x+2y)(x−3y)

Question 9

(xy−15)(xy+3)

(xy+15)(xy+3)

(xy−15)(xy−3)

(x−15)(y+3)

Solution

Question 10

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Solution

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