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

Simplify: a(b − c) + b(c − a) + c(a − b)

Simplify: 4ab(a − b) − 6a²(b − b²) − 3b²(2a² − a) + 2ab(b − a)

Simplify:  x²(x² + 1) − x³(x + 1) − x(x³ − x)

Simplify:   2a² + 3a(1 − 2a³) + a(a + 1)

Simplify: a²(2a − 1) + 3a + a³ − 8

Simplify: \[\frac{3}{2} x^2 ( x^2 - 1) + \frac{1}{4} x^2 ( x^2 + x) - \frac{3}{4}x( x^3 - 1)\]

Simplify: a²b(a − b²⁾ + ab²(4ab − 2a²) − a³b(1 − 2b)

Simplify:  a²b(a³ − a + 1) − ab(a⁴ − 2a² + 2a) − b (a³ − a² − 1)

Multiply:
(5x + 3) by (7x + 2)

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