Evaluate $5^{- 2}$ .

Practise more Algebra and exponents.

Free questions with an explanation for every one, and full timed National Benchmark Tests (NBT) mock tests.

What is the coefficient of $x$ when $(x - 9) (x - 6)$ is expanded?
What is the coefficient of $x$ when $(x + 2) (x - 4)$ is expanded?
What is the coefficient of $x$ when $(x + 8) (x - 2)$ is expanded?
What is the coefficient of $x$ when $(x - 9) (x + 8)$ is expanded?
What is the coefficient of $x$ when $(x - 2) (x + 9)$ is expanded?
What is the coefficient of $x$ when $(x + 8) (x + 4)$ is expanded?