Answer:
A.) 
Step-by-step explanation:
f(-2) means plug in -2 in for x for the equation f(x), therefore,
f(-2) = 
Answer:
x=-4, x=9
Step-by-step explanation:
We write this into words:
difference = subtraction
square = ^2
a number = x
is equal to = =
5 times that number = 5x
x^2-36 = 5x
write in standard form
x^2-5x-36
what adds to -5 and multiplies to -36?
-9 and 4!
(x-9)(x+4)
x-9 = 0
x= 9
x+4 = 0
x=-4
Because Jamaal is not running against anyone for class treasurer he will be the only 1 therefore the answer is 1. According to e2020 the answer is 1 also.
Answer: 
Work Shown:
I'm assuming your teacher wants you to factor as much as possible.
In the last step, I used the rule that 
We cannot factor any further. If the first term was 
instead of 
, then we could use the difference of squares factoring rule.
