SOLUTION: please Show Work Factor: 5x2 + 9x - 2

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Question 316916: please Show Work
Factor: 5x2 + 9x - 2
Found 2 solutions by solver91311, CharlesG2:
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


5 times 1 is 5
-1 times 2 is -2
(5 times 2) + (-1 times 1) = 9

Should give you enough clues to solve this one.

John

Answer by CharlesG2(834) About Me  (Show Source):
You can put this solution on YOUR website!
please Show Work
Factor: 5x2 + 9x - 2
5x^2 + 9x - 2
(5x - 1)(x + 2)
using FOIL (first outer inner last) you can see
this is the right factorization:
first: 5x * x +
outer: 2 * 5x -
inner: 1 * x -
last : 1 * 2