factorise:-27-125a^3-135^a-225a^2......
Anonymous:
hey its not - 225a²
its 225a²
the question is 27 - 125a³ - 135a² + 225a²
okkkk
Answers
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27 - 125a³ - 135a² + 225a²
⇒ (3)³ - (5a)³ - 3*3*5a(3 - 5a) [(a-b)³ = a³ - b³ -3ab(a-b)]
⇒ (3-5a)³
⇒ (3)³ - (5a)³ - 3*3*5a(3 - 5a) [(a-b)³ = a³ - b³ -3ab(a-b)]
⇒ (3-5a)³
thanks
ur welcome
its okkkk
once again thanks for marking as brainliest
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