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25 October, 10:12

Factor trinomial 2x^2+13x+15

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  1. 25 October, 11:56
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    Try this option:

    1. if D≥0, then trinomial 'ax²+bx+c' can be written in form a (x-x1) (x-x2), where x1 and x2 - roots of ax²+bx+c=0.

    2. D=b²-4ac=13²-15*2*4=49, then 2x²+13x+15=2 (x+5) (x+1.5)

    answer: 2 (x+5) (x+1.5).
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