Answers

2016-07-01T21:37:52+08:00

2x² + 5x - 3 = 0
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2 can only be factored into two factors as 1×2.
3 can only be factored into two factors as 1×3.
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So the only possible ways we could have for the factorization of the
left side are:
`
(2x ` 3)(x ` 1)
(2x ` 1)(x ` 3) 
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The signs must be opposite so that we get -3 for the last term,
so we have these possibilities: 
(2x + 3)(x - 1) = 2x² + x - 3 
(2x - 3)(x + 1) = 2x² - x - 3 
(2x + 1)(x - 3) = 2x² - 5x - 3
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