Secondary School (English Medium) (5 to 8) कक्षा ८ - CBSE Question Bank Solutions

Find the common factors of the terms.

3x²y³, 10x³y², 6x²y²z

Factorise the following expression:

7x − 42

Factorise the following expression:

6p − 12q 

Factorise the following expression:

7a² + 14a

Factorise the following expression:

−16z + 20z³

Factorise the following expression:

20 l²m + 30 alm

Factorise the following expression:

5x²y − 15xy² 

Factorise the following expression:

10a² − 15b² + 20c²

Factorise the following expression:

− 4a² + 4ab − 4 ca

Factorise the following expression:

x²yz + xy²z + xyz²

Factorise the following expression:

ax²y + bxy² + cxyz

Factorise. 

x² + xy + 8x + 8y

Factorise.

15xy − 6x + 5y − 2

Factorise.

ax + bx − ay − by

Factorise.

15pq + 15 + 9q + 25p

Factorise.

z − 7 + 7xy − xyz

Find the values of the letters in each of the following and give reasons for the steps involved.

     3 A

 +  2 5

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    B 2

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Find the values of the letters in the following and give reasons for the steps involved.

   4 A

+ 9 8

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C  B 3

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Find the value of the letter in the following and give reasons for the steps involved.

  1 A

  x A

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  9 A

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Find the values of the letters in the following and give reasons for the steps involved.

   A B

+ 3 7

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   6 A

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