# Algebra

Completely factor the following expression:100x2 â€“ 160xy + 64y2

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1. 100x2 â€“ 160xy + 64y2
=4(25x²-40xy+16y²)
=4((5x)²-2*5x*4y+(4y)²)
=...
use (a-b)²=a²-2ab+b²
to complete the factorization.

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