Find f(x+3) for the following function. Please show all of your work. f(x) = x^2-7x+7 Find f(x+3) for the following function. Please show all of your work. f(x) = x^2-7x+7 @Mathematics

Question

jim_thompson5910 · Answer

f(x) = x^2-7x+7


f(x+3) = (x+3)^2-7(x+3)+7 ... replace EVERY x with 'x+3'


f(x+3) = x^2+6x+9-7(x+3)+7


f(x+3) = x^2+6x+9-7x-21+7


f(x+3) = x^2-x-5

anonymous · Answer

f(x+3)= (x+3)^2 -7(x+3)+7 -> x^2-x-5

anonymous · Answer

so which answer is correct? These are two different ones. lol

jim_thompson5910 · Answer

we both got the same answer, look at the last line of my work and after the "->" for the other poster


btw answer is x^2-x-5 (which we both got)

anonymous · Answer

different way but same(answers)

anonymous · Answer

okay great. Thanks so much. I saw it differently because I dont understand this stuff. lol