How do you factor the trinomial $x^{2} + 5 x - 25$ $x^2 + 5x-25$ ?

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Answer 1 · 2015-11-25T23:53:01

Factor: $x^{2} + 5 x - 25 .$ $x^2 + 5x - 25.$

$D = b^{2} - 4 a c = 25 + 100 = 125 .$ $D= b^2 - 4ac = 25 + 100 = 125.$
D is not a perfect square, therefor, this trinomial can't be factored.

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