Question

Calculează: d) ( - 2 ) la puterea 3 - ( - 2 ) la puterea 2

Answer 1

(-2)²=4

3-(-2)²=3-4=-1

Answer 2

Răspuns:

$( { - 2})^{3} - {( - 2)}^{2} = ( - 2 - 1) \times {( - 2)}^{2} = - 3 \times {2}^{2} = - 3 \times 4 = - 12$