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4 votes
Plz help me with this

Plz help me with this-example-1
User Ray
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1 Answer

4 votes

Answer: a) 125x³ - 64y³

Explanation:

(25x² + 20xy + 16y²)(5x - 4y)

= (5x - 4y)(25x² + 20xy + 16y²)

= 5x(25x² + 20xy + 16y²) -4y(25x² + 20xy + 16y²)

= 125x³ + 100x²y +80xy²

+ -100x²y -80xy² - 64y³

= 125x³ -64y³

User GeoJim
by
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