Question

Evaluate the given expression if a​ = 2 and ​b​ = -4 a2-b3

Answer 1

Answer:

31

Step-by-step explanation:

${a}^{2} - {b}^{3} \\ \\ = {(2)}^{2} - {( - 3)}^{3} \\ \\ = 4 - ( - 27) \\ \\ = 4 + 27 \\ \\ = 31$