Question 480762
You have to apply FOIL
.
f(x)=x^2+1 find for f(x+2)
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f(x+2)=(x+2)^2+1
f(x+2)=(x+2)(x+2)+1
f(x+2)=(x^2+2x+2x+4)+1
f(x+2)=(x^2+4x+4)+1
f(x+2)= x^2+4x+5