Question

What is the answer to

K(x)=x²+4x-1 If K(x-5)

Please explain how you got the answer.

Answer 1

I believe the answer is x^2-6x-4

I got the answer by replacing every X in the function with (x-5)

(X-5)^2+4(x-5)-1=
X^2-10X+25+4x-20-1=
X^2-6X+4