Express x^2 4x-7 in the form (x a)^2-b
Answers
Answered by
3
Answer is
(x+2)^2-11
Step-by-step explanation:
f(x)=x^2+4x-7
x^2+4x = (x+2)^2-4
w.k.t
f(x) = (x+2)^2 -4-7
f(x) = (x+2)^2 - 4 - 7
f(x) = ( x+2)^2 - 11
Similar questions