Sarah K.
asked • 11/18/13simplify 3r2+3r+r3+1
3r2+3r+r3+1=
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1 Expert Answer
Kevin F. answered • 11/18/13
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Computer Programming and Mathematics Tutor
(r + 1)3
To check, expand the expression:
(r + 1) (r + 1) (r + 1)
= r2 + 2r + 1 (r + 1)
= r3 + 2r2 + r + r2 + 2r + 1
= r3 + 3r2 + 3r + 1
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Adam R.
11/18/13