10-138. If f(x)= x2 – 2 then: f(x) – 3 =(x2 – 2)-3 also f(2x) = (2x)2 - 2
=x² – 5
= 4x² – 2
Use these same ideas with f(x)=(x +1)2 – 3 find these expressions:
a.
f(x)+ 3
b.
f(3x)
c.
3. f(x)
d.
f(x+3)

This is from Core Connections Algebra, problem 10-138

Answerthe simplified expression isexplanationthe given expression is,let us deal with the bracket first.the two negatives in the parenthesis will become positive.the expression now becomes,we now expand the parenthesis to get,we group like terms to obtain,this simplifies to,

Ithink the answer is d.