Question

PLEASE HELP!!!

Evaluate the following expression using the values given:
−a^2 − 3b^3 + c^2 + 2b^3 − c^2 if a = 3, b = 2, and c = −3.



A −67


B −17


C −31


D 1

Answer 1

b -17

Explanation:

−a^2 − 3b^3 + c^2 + 2b^3 − c^2 =

= -(3²) - 3(2³) + (-3)² + 2(2³) - (-3)²

= -9 - 3(8) + 9 + 2(8) - 9

= -9 - 24 + 9 + 16 - 9

= -17