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

Factorize each of the following algebraic expression:
49 − x² − y² + 2xy

Factorize each of the following algebraic expression:
a² + 4b² − 4ab − 4c²

Factorize each of the following algebraic expression:
x² − y² − 4xz + 4z²

Factorize each of the following algebraic expression:
x² + 12x − 45

Factorize each of the following algebraic expression:
40 + 3x − x²

Factorize each of the following algebraic expression:
a² + 3a − 88

Factorize each of the following algebraic expression:
a² − 14a − 51

Factorize each of the following algebraic expression:
x² − 22x + 120

Factorize each of the following algebraic expression:
x² − 11x − 42

Factorize each of the following algebraic expression:
a² + 2a − 3

Factorize each of the following algebraic expression:
a² + 14a + 48

Factorize each of the following algebraic expression:
y² + 5y − 36

Factorize each of the following algebraic expression:
(a + 7)(a − 10) + 16

Find the constant of variation from the table given below:

Set up a table and solve the following problems. Use unitary method to verify the answer.

Find the square root of:

\[10\frac{151}{225}\]

Find the value of:

\[\frac{\sqrt{80}}{\sqrt{405}}\]

Find the value of:

\[\frac{\sqrt{441}}{\sqrt{625}}\]