SOLUTION: 1. Given the function f(x) = x^2 + 6x, which of the following equals f(1 + x)? 2. Given the function g(t) = 2t^2� t � 1, which of the following equals g(2 + 3 )?

SOLUTION: 1. Given the function f(x) = x^2 + 6x, which of the following equals f(1 + x)? 2. Given the function g(t) = 2t^2� t � 1, which of the following equals g(2 + 3 )?

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Question 972547: 1. Given the function f(x) = x^2 + 6x, which of the following equals f(1 + x)?
2. Given the function g(t) = 2t^2� t � 1, which of the following equals g(2 + 3 )?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
f(1+x)= (x+1)^2 + 6 (x+1)
= x^2+2x+1+6x+1
=x^2 +8x+2

g(2t+3)
=2* (2t+3)^2-(2t-3) -1
=2* (4t^2)+12t+9)-2t+3-1
=8t^2+22t+20

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