15. 5 - (3a2 - 2a) (6 - 3a2 + 2a)
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Answered by
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The answer is 12a²-6a⁴+4a³+42a-21a³+14a²
Hope it will help you
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Answered by
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Step-by-step explanation:
answer:
5-(3a-2a)(6-3a+2a)
= 5-(3a-2a)[6-(3a-2a)]
Assume that 3a-2a=×
Therefore
5-(3a-2a)(6-3a+2a
=5-×(6-×
=5-6×+×
=(5-×)(1-×)
=(×-5) (×-1)
=(3a-5a+3a-5)(3a-3a+-1)
=[a(3a-5) +1(3a-5)][3a(a-1)+(a-1)
=(3a-5)(a+1)(3a+1)(a-1)
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