20-02-2016
Mathematics

contestada

2x^2+6x-8 and x+3 in standard form

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Аноним Аноним

22-02-2016

(2x²+6x-8)(x+3)

2x²*x=2x³
2x²*3=6x²
6x*x=6x²
6x*3=18x
-8*x=-8x
-8*3=-24

6x²+6x²=12x²
18x-8x=10x

2x³+12x²+10x-24

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