how to solve this expression 8x3+64y3 with the help of formula a3+b3=(a+b)(a2-ab+b2)

with the help of this

formula a3+b3=(a+b)(a2-ab+b2)
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1 Answer

Let a=2x and b=4y.

a^3+b^3=(2x+4y)(4x^2-8xy+16y^2)=8(x+2y)(x^2-2xy+4y^2)=8x^3+64y^3
by Top Rated User (1.2m points)

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