SOLUTION: factor 5x2 -8x -4

Question 691119: factor 5x2 -8x -4
Answer by pmatei(79) (Show Source): You can put this solution on YOUR website!

Need to find 2 numbers that multiply to -20 and add to -8. Those numbers are -10 and 2. Rewrite as

Group first 2 terms and the last 2 terms:

Factor 5x from first parenthesis and 2 from the second one:

If you done everything right the 2 parentheses should be the same. In this case . This is one of the 2 parentheses you are looking for. The second one is formed by the factors written in front of it: ex and 2.

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