evalaute the expression

Given 3x2 + 2x – y, evaluate when x = -5 and y = 7

3 answers

The answer is - 47

This is how i did it:
3X2=multiple 3 x (-5) x 2= -15 x 2 = -30
2X-y = 2 x (-5) - 7= -10 - 7= -17

Add the two answers: -30 + (-17)= -47
I think what was meant is

3x^2 + 2x - y

3(25) + 2(-5) + 7 = 72
3(25) + 2(-5) - 7 = 58