Q97 of 196 Page 249

Find the product of the cube of (–2) and the square of (+4).

cube of -2 = (-2)³ = -(2)³

And square of +4 = 4²

∴ the product of the cube of (–2) and the square of (+4)

= -(2)³ × 4²= -8 × 16 = -128

∴ the product of the cube of (–2) and the square of (+4) is -128.

Express as a power of a rational number with negative exponent.

(2⁵ ÷ 2⁸) × 2^–7

Simplify: