SOLUTION: Please help me. Using the AC method, please show me the steps to solve this problem. 10m^2-23m-12

Question 107858This question is from textbook
: Please help me. Using the AC method, please show me the steps to solve this problem.
10m^2-23m-12
This question is from textbook

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
the problem you have posted cannot be factored using the AC method.
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The following problem can be
Using the AC method, please show me the steps to solve this problem.
10m^2-23m+12
AC = 10*12 = 120
B = -23
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Think of two numbers whose product is 120 and whose sum is -23
The numbers are -15 and -8
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Rewrite the problem replacing -23m by -15m-8m:
10m^2-15m-8m+12
Factor the 1st 2 and the last two terms separately:
5m(2m-3)-4(2m-3)
Factor again to get the final answer:
(2m-3)(5m-4)
==================
Cheers,
Stan H.

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