Factorise 3ab+6a+5a+10
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Factoring 2a2-a-2
The first term is, 2a2 its coefficient is 2 .
The middle term is, -a its coefficient is -1 .
The last term, "the constant", is -2
Step-1 : Multiply the coefficient of the first term by the constant 2 • -2 = -4
Step-2 : Find two factors of -4 whose sum equals the coefficient of the middle term, which is -1 .
-4 + 1 = -3
-2 + 2 = 0
-1 + 4 = 3
hope I can help u
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