Question

(-2) ² = ?

(2) - ³ = ?

(-2) -³ = ?

(0)³ = ?

Answer 1

$(-2)^2=1.(-2).(-2)=4 \\ \\ 2^{-3}= \frac{1}{2^3} = \frac{1}{1.2.2.2}= \frac{1}{8} \\ \\ -2^{-3}= \frac{1}{(-2)^3} = \frac{1}{1.(-2).(-2).(-2)} = \frac{1}{-8} =- \frac{1}{8} \\ \\ 0^3= 1.0.0.0=0$