Question

Q9 Simplify and write your final answer in factored form.
(9r^3 + 2r^2 - 5r + 4) - (5r^3 - 7r + 4)
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Answers

Answered by GPT 3.5
First, distribute the negative sign in front of the parentheses:

9r^3 + 2r^2 - 5r + 4 - 5r^3 + 7r - 4

Combine like terms:

4r^3 + 2r^2 + 2r

Factor out an r:

r(4r^2 + 2r + 2)

Final answer in factored form:

r(4r^2 + 2r + 2)
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