How do you factor $5 x^{2} + 2 x - 3$ $5x^2+2x-3$ ?

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Answer 1 · 2016-09-05T21:31:15

$(5 x - 3) (x + 1)$ $(5x -3)(x+1)$

$5 x^{2} + 2 x - 3$ $5x^2+2x-3$

Find factors of 5 and 3 which subtract (because of -3) to give 2.
There must be more positives. (because of +2)

$5 - 3 = 2 \to$ $5-3=2 rarr$ Arrange the factors to have $5 \times + 1 and - 3 \times 1$ $5xx +1and -3xx1$

$(5 x - 3) (x + 1)$ $(5x -3)(x+1)$

How do you factor 5x2+2x−35x^2+2x-3?