factorize a(12a+7)-10
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12a²+7a-10
12a²+15a-8a-10
3a(4a+5)-2(4a+5)
(3a-2)(4a+5)
a=2/3
=-5/4
12a²+15a-8a-10
3a(4a+5)-2(4a+5)
(3a-2)(4a+5)
a=2/3
=-5/4
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