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

Factorise the following expression.

p² + 6p + 8

Factorise the given expression.

q² − 10q + 21

Factorise the given expression.

p² + 6p − 16

Express the following numbers in standard form:
6020000000000000

Express the following numbers in standard form:
0.00000000000943

Express the following numbers in standard form:
0.00000000085

Express the following numbers in standard form:
846 × 10⁷

Express the following numbers in standard form:
3759 × 10⁻⁴

Express the following numbers in standard form:
0.00072984

Express the following numbers in standard form:
0.000437 × 10⁴

Express the following numbers in standard form:
4 ÷ 100000

Write the following numbers in the usual form:
4.83 × 10⁷

Write the following numbers in the usual form:
3.02 × 10⁻⁶

Write the following numbers in the usual form:
4.5 × 10⁴

Write the following numbers in the usual form:
3 × 10⁻⁸

Write the following numbers in the usual form:
1.0001 × 10⁹

Write the following numbers in the usual form:
5.8 × 10²

Write the following numbers in the usual form:
3.61492 × 10⁶

Write the following numbers in the usual form:
3.25 × 10⁻⁷

Add the following algebraic expression:

3a²b, − 4a²b, 9a²b