-4² : given
= - (4 * 4) = -16 : expand and calculate
(-2)³ : given
= (-2)*(-2)*(-2) = -8 : expand and calculate
1000⁰ : given
= 1000⁰ = 1 : definition: any nonzero number to the power zero gives 1
566¹ : given
= 566¹ = 566
(-2)⁴ : given
= (-2)³ × -2 = -8 × -2 = 16
Hope I helped! :)