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

Multiply:
(2x + 8) by (x − 3)

Multiply:
(7x + y) by (x + 5y)

Multiply:
(a − 1) by (0.1a² + 3)

Multiply:
(3x² + y²) by (2x² + 3y²)

Multiply: \[\left( \frac{3}{5}x + \frac{1}{2}y \right) by \left( \frac{5}{6}x + 4y \right)\]

Multiply:
(x⁶ − y⁶) by (x² + y²)

Multiply:
(x² + y²) by (3a + 2b)

Multiply:
[−3d + (−7f)] by (5d + f)

Multiply:
(0.8a − 0.5b) by (1.5a − 3b)

Multiply:
(2x²y² − 5xy²) by (x² − y²)

Multiply: \[\left( - \frac{a}{7} + \frac{a^2}{9} \right)by\left( \frac{b}{2} - \frac{b^2}{3} \right)\].

Multiply:
(3x²y − 5xy²) by  \[\left( \frac{1}{5} x^2 + \frac{1}{3} y^2 \right)\].

Multiply:
(2x² − 1) by (4x³ + 5x²)

(2xy + 3y²) (3y² − 2)

Find the following product and verify the result for x = − 1, y = − 2:
(3x − 5y) (x + y)

Find the following product and verify the result for x = − 1, y = − 2:
(x²y − 1) (3 − 2x²y)

Find the following product and verify the result for x = − 1, y = − 2: \[\left( \frac{1}{3}x - \frac{y^2}{5} \right)\left( \frac{1}{3}x + \frac{y^2}{5} \right)\]

Simplify:
x²(x + 2y) (x − 3y)

Simplify:

(x² − 2y²) (x + 4y) x²y²

Simplify:
a²b²(a + 2b)(3a + b)