Question

Evaluate the following expression using the values given: Find -a2 - 3b3 + c2 + 2b3 - c2 if a = 3, b = 2, and c = -3. -67 -17 -31 1

Answer 1

-a^2 - 3b^3 + c^2 + 2b^3 - c^2 (a = 3, b = 2, c = -3)
now we sub
-3^2 - 3(2^3) + (-3^2) + 2(2^3) - (-3^2)
9 - 3(8) + 9 + 2(8) - 9
9 - 24 + 9 + 16 - 9
-24 - 9 + 16
-33 + 16
-17 <== your answer