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How do I solve 20? Thanks

How do I solve 20? Thanks-example-1
User TheWaveLad
by
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1 Answer

4 votes
20)

using
a^3 + b^3 = (a+b)(a^2 − ab + b^2)
so
w^3 + 125z^3
= w^3 +(5z)^3
= (w + 5z)(w^2 - 5wz + 25z^2)

hope it helps
User Chuck Pinkert
by
8.6k points

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