English Medium Class 9 - CBSE Question Bank Solutions

Factorize: x⁴ + x² + 25.

Factorize : x² − 1 − 2a − a²

The factors of x³ −x²y − xy² + y³ are

The factors of x³ − 1 + y³ + 3xy are

The factors of 8a³ + b³ − 6ab + 1 are

(x + y)³ − (x − y)³ can be factorized as

The expression (a − b)³ + (b − c)³ + (c −a)³ can be factorized as

The value of \[\frac{(2 . 3 )^3 - 0 . 027}{(2 . 3 )^2 + 0 . 69 + 0 . 09}\]

The value of \[\frac{(0 . 013 )^3 + (0 . 007 )^3}{(0 . 013 )^2 - 0 . 013 \times 0 . 007 + (0 . 007 )^2}\] is

Mark the correct alternative in each of the following: The factors of a² − 1 − 2x − x² are

The factors of x⁴ + x² + 25 are

The factors of x² + 4y² + 4y − 4xy − 2x − 8 are

The factors of x³ − 7x + 6 are

The expression x⁴ + 4 can be factorized as

If 3x = a + b + c, then the value of (x − a)³ + (x −b)³ + (x − c)³ − 3(x − a) (x − b) (x −c) is

If (x + y)³ − (x − y)³ − 6y(x² − y²) = ky², then k =

If x³ − 3x² + 3x − 7 = (x + 1) (ax² + bx + c), then a + b + c =

Write the coefficient of x² in the following:-

2 - x² + x³

Write the coefficient of x² in the following:-

`pi/2x^2+x`