SOLUTION: Use substitution to compose y = 4u^2 + 3u + 4 and u = 2x^2. Enter your answer as an equation, and simplify your answer as much as possible.

Algebra ->  Expressions-with-variables -> SOLUTION: Use substitution to compose y = 4u^2 + 3u + 4 and u = 2x^2. Enter your answer as an equation, and simplify your answer as much as possible.       Log On


   

Question 851991: Use substitution to compose y = 4u^2 + 3u + 4 and u = 2x^2. Enter your answer as an equation, and simplify your answer as much as possible.
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
You are supposed to SUBSTITUTE what you are told to substitute. Just do that.
You must obtain highlight%28y=16x%5E4%2B6x%5E2%2B4%29 when you are finished.

After feedback, the first step needs to be clarified.
4u%5E2+%2B+3u+%2B+4 and u+=+2x%5E2
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Make the substitution.
4%282x%5E2%29%5E2%2B3%282x%5E2%29%2B4
and ONE MORE step.
4%282%2A2%2Ax%5E2%2Ax%5E2%29%2B3%2A2%2Ax%5E2%2B4