Given F(x) = x^2 + 4x − 5, evaluate. F(−5)

Question

Given F(x) = x^2 + 4x − 5, evaluate.

F(−5)

Answer 1

Given F(x) = x^2 + 4x − 5, evaluate.

F(−5) This is equivalent to F(x=-5)

Substitute -5 in for x

F(-5)=(-5)^2+4*(-5)-5=25-20-5=0

F(-5)=0