Question

3a^2-5b+8 when a=-2 and b=3

Answer 1

`3( - 2)^(2) - 5(3) + 8`
12-15+8
=5

Answer 2

the answer is 5

3a^2-5b+8

3(-2)^2-5(3)+8

3(4)-15+8

4 becomes positive because negative multiplied by negative is positive

12-15+8

combine like terms.

20-15 is equals to 5