jaebird50 jaebird50

19-08-2018
Mathematics

contestada

factoring trinomials????

x^2+8x+15

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annastasia annastasia

19-08-2018

x^2+8x+15

= x^2 + 5x + 3x + 15

= x(x+5) + 3(x+5)

= (x+5)(x+3)

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Аноним Аноним

19-08-2018

You nee 2 numbers whose sum is +8 and whose product is +15.

That is 3 and 5.

so the answer is (x + 3)(x + 5)

Answer Link

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