Question

Evaluate the following expression using the values given: Find -3a2 - b3 + 3c2 - 2b3 if a = 2, b = -1, and c = 3. Numerical Answers Expected! HELP!!!!

Answer 1

sub values of a, b and c into the equation.

(-3x2x2)-(-1x3)+(3x3x2)-(2x3x2)-(2x-1x3)

(-12)-(-3)+(18)-(12)-(-6)

=3

Answer 2

-3(2)2 - (-1)3 + 3(2)2 - 2(-1)3
-12 + 3 +12 +6
-9 +12 + 6
3 + 6
9
so the answer is 9
hope it help