find the sum of 5x²-x-12
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Answer:
The first term is, 5x2 its coefficient is 5 .
The middle term is, -x its coefficient is -1 .
The last term, "the constant", is -12
Step-1 : Multiply the coefficient of the first term by the constant 5 • -12 = -60
Step-2 : Find two factors of -60 whose sum equals the coefficient of the middle term, which is -1 .
-60 + 1 = -59
-30 + 2 = -28
-20 + 3 = -17
-15 + 4 = -11
-12 + 5 = -7
-10 + 6 = -4
-6 + 10 = 4
-5 + 12 = 7
-4 + 15 = 11
-3 + 20 = 17
-2 + 30 = 28
-1 + 60 = 59
Step-by-step explanation:
- hope it helps you
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