27x3-125z3
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Yogita Ingle 4 years, 4 months ago
27x3 + 125z3
= (3x)3 + (5z)3
= (3y +5z){(3y)2 –(3y)(5z) + (5z)2}
= (3y +5z) (9y2 – 15yz + 25z2)
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