Question #588e9

1 Answer
Dec 20, 2017

#f(-6) = 780#

Explanation:

I believe the question is saying;

#f(x) = 23x^2 + 8x#

We are asked to solve for the value of the function when #x=-6#. To do that, we need to plug in #-6# for every instance of #x#.

#f(-6) = 23(-6)^2 +8(-6)#

The correct order of operations is to handle the exponent, #(-6)^2#, first.

#f(-6) = 23(36)+8(-6)#

Multiplication next.

#f(-6) = 828 - 48#

Then, subtraction to finish the calculation.

#f(-6) = 780#