Question

PLEASE HELP (25 PTS)

Find −3a^2 − b^3 + 3c^2 − 2b^3 if a = 2, b = −1, and c = 3. *

Answer 1

Substitute the values in the expression:-

= -3*2^2 - (-1)^3 + 3*3^2 - 2*(-1)^3

= -12 - (-1) + 27 - 2*-1

= -12 + 1 + 27 + 2

= 18 (answer)