factorize : 125x³ - 216y³
Pinkoo1234:
u mean write the factors of them?
no, factorising
oh!
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125x raised to 3-216xraised to 3=(5x)raised to 3-(6x)raised to 3
sorry, i am unable to understand this answer so please edit your answer.
actually i dont have that fonts
sry but say what is your doubt
please do this question neatly and in detail.
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125x³ - 216y³
= (5³)x³ - (6³)y³
= (5x)³ - (6y)³ → recall the previous result where: a = 5x and where: b = 6y
= (5x - 6y).[(5x)² + (5x * 6y) + (6y)²]
= (5x - 6y).(25x² + 30xy + 36y²)
= (5³)x³ - (6³)y³
= (5x)³ - (6y)³ → recall the previous result where: a = 5x and where: b = 6y
= (5x - 6y).[(5x)² + (5x * 6y) + (6y)²]
= (5x - 6y).(25x² + 30xy + 36y²)
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