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Factorise : 8x³ - 27y³ + …

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Factorise : 8x³ - 27y³ + 125z³ + 90xyz

Posted by Trishla Jain 4 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Yogita Ingle 4 years, 2 months ago

8x³−27y³+125z³+ 90xyz
Using,
a³+b³+c³−3abc=(a+b+c)(a²+b²+c²−ab−bc−ca)
Here,
a=2x
b=−3y
c=5z,
Therefore,
=>(2x)³+(−3y)³+(5z)³−3×2x×(−3y)×5z
=(2x−3y+5z)(4x²+9y²+25z²+6xy+15yz−10xz)

2Thank You

ANSWER

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CBSE > Class 09 > Mathematics