factorise factorise 27 - 125 a cube + 12 a square b + 6àb square
Answers
Answered by
1
Answer:
27-125a³-135a+225a
= (3-5a)³
= (3-5a)(3-5a)(3-5a)
Step-by-step explanation:
Given 27-125a³-135a+225a
=3³+(-5a)³+3×3²×(-5a)+3×3×(-5a)²
= [3+(-5a)]³
/* By an algebraic identity:
*/
=(3-5a)³
Therefore,
27-125a³-135a+225a = (3-5a)³
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Answered by
3
Answer:
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