SOLUTION: Find the solution(s) for when f(x) = -4 if f(x) = -x^2 + 12 a. x=4 b. x=4,-4 c. x^2=16 d. There are no solutions since you cannot take the square root of a negative numbe

Algebra ->  Equations -> SOLUTION: Find the solution(s) for when f(x) = -4 if f(x) = -x^2 + 12 a. x=4 b. x=4,-4 c. x^2=16 d. There are no solutions since you cannot take the square root of a negative numbe      Log On


   

Question 143971: Find the solution(s) for when f(x) = -4 if f(x) = -x^2 + 12
a. x=4
b. x=4,-4
c. x^2=16
d. There are no solutions since you cannot take the square root of a negative number
Answer by nabla(475) About Me  (Show Source):
You can put this solution on YOUR website!
-4=-x^2+12
0=-x^2+16
x must be 4 or -4
b.