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lhotsedog2573
25.09.2019 •
Mathematics
Plz !
(2x - 3) and (x + 5) are the factors of a quadratic equation. write the equation.
a) y = 2x2 + 2x - 15
b) y = 2x2 + 7x - 15
c) y = 2x2 + 7x +15
d) y = x2 + 7x - 15
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Ответ:
The answer would be B, 2x2+7x-15.
Step-by-step explanation:
Use the distributive property!!
(2x-3)(x+5)
distribute the 2x to the x and 5.
You get 2x2+10x
distribute the -3 to the x and 5.
You get -3x-15
combine like terms:
2x2+10x-3x-15
You get the answer 2x2+7x-15
hope this helps :)
Ответ:
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Step-by-step explanation:
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