Question

Pleeeeeeeease helppppppppppppppppp I don't understand

Answer 1

Answer: A) -5

Step-by-step explanation:

`x^(2) -6x+9=(x-3)(x-3)=(x-3)^(2) \\\\f(x)=(x+2)^(2) \\f(x+a)=[(x+a)+2]^(2) =(x+a+2)^(2)\\\\(x+a+2)^(2)=(x-3)^(2)\\x+a+2=x-3\\x-x+a=-2-3\\a=-5`

I think that's how you do it?