factories 27-125a^3-135a+225a^2
rudrakshi123:
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6
heya it's Aastha !!!!
125a3+ 225a2+ 135a+ 27
= (5a)^3+ 3 × (5a)^2× (3) + 3 × (5a) × (3)^2+ 33
= (5a + 3)^3
[Since, a3+ 3a2b + 3ab2+ b3= (a + b)3]
hope it help you
thnks @
125a3+ 225a2+ 135a+ 27
= (5a)^3+ 3 × (5a)^2× (3) + 3 × (5a) × (3)^2+ 33
= (5a + 3)^3
[Since, a3+ 3a2b + 3ab2+ b3= (a + b)3]
hope it help you
thnks @
Answered by
8
given :- 27-125a³-135a+225a²
= (3)³-(5a)³-3(3)²(5a)+3(3)(5a)²
= (3-5a)³
= (3-5a)(3-5a)(3-5a)
= (3)³-(5a)³-3(3)²(5a)+3(3)(5a)²
= (3-5a)³
= (3-5a)(3-5a)(3-5a)
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