Question

Evaluate the following expression using the values given:

Find -3a2 - b3 + 3c2 - 2b3 if a = 2, b = -1, and c = 3.

Answer 1

What's hard about this? Just plug them in and solve:
\[\LARGE -3(2)^2-(-1)^3+3(3)^2-2(-1)^3\]
So \[\LARGE -3(4)-(-1)+3(9)-2(-1)\]
\[\LARGE -12+1+27+2\]
Can you finish it from here?