Maddyfaith
Maddyfaith
07-09-2017
Mathematics
contestada
How do I solve 20? Thanks
Respuesta :
choixongdong
choixongdong
07-09-2017
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
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