Okay, here we have this:
Considering the provided expression, we are going to evaluate it in the given value of x, so we obtain the following:
x² + 4x - 9 when x = 5
=(5)² + 4(5) - 9
=25 + 20 - 9
=36
Finally we obtain that x² + 4x - 9 when x = 5 is equal to 36.
