Simplifying after having derived a function
- Thread starter Tom22
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Otis
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- Apr 22, 2015
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Hi Tom. I think you're asking how to obtain the expression 3x(x+2) from this expression:
(x + 2)^2 + 2(x - 1)(x + 2)
There are two ways to simplify. (1) Use distribution to complete the multiplications, combine like-terms and factor the result, or (2) note that there is at least one factor of (x+2) on each side of the red plus sign, factor it out and then use distribution and combining like-terms to simplify the remaining factor.
If you get stuck, please share your attempt.
[imath]\;[/imath]
(x + 2)^2 + 2(x - 1)(x + 2)
There are two ways to simplify. (1) Use distribution to complete the multiplications, combine like-terms and factor the result, or (2) note that there is at least one factor of (x+2) on each side of the red plus sign, factor it out and then use distribution and combining like-terms to simplify the remaining factor.
If you get stuck, please share your attempt.
[imath]\;[/imath]