factories : 3(a-2b)² - 5(a-2b)
please solve it.
try to find out the answer , if answer is ;
( a-2b)(3a-6b-5) .
Solve it by own for 30 points.
please solve it.
try to find out the answer , if answer is ;
( a-2b)(3a-6b-5) .
Solve it by own for 30 points.
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(a-2b) [3(a-2b) -5]
(a-2b) [3a-6b-5]answers
=3(a+4b²-4ab)-5(a-2b)
=3a²+12b²-12ab-5a+10b
=3a²+12b²-6ab-6ab-5a+10b
=3a²-6ab-6ab+12b²-5a+10b
=3a(a-2b)-6b(a-2b)-5(a-2b)
=(a-2b)(3a-6b-5)
proved
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