Is it possible to factor $y=2x^2+2x-2$ ? If so, what are the factors?

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Answer 1 · 2018-04-19T07:53:40

Yes. See below

$2x^2+2x-2=2(x^2+x-1)=$

Appliying cuadratic formula

$x=(-1+-sqrt(1+4))/2=(-1+-sqrt5)/2 ddots$

Both roots are real numbers and we can write

$2x^2+2x-2=2(x^2+x-1)=$

$=2(x-(-1-sqrt5)/2)(x-(-1+sqrt5)/2)$

Is it possible to factor y=2x^2+2x-2 y=2x^2+2x-2 ? If so, what are the factors?