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Ramar59
14.03.2020 •
Mathematics
Igoroleshko156 this question is for you...
The polynomial P(x)=2x^2−5x−42 can be factored as P(x)=(x−6)(2x+7). What are the zeros of the polynomial?
Enter your answers separated by a comma. Use the "/" symbol for fractions, if necessary. For example, if your answers are 42 and 314, enter your answer like this: 42, 3/14
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Ответ:
x = 6, -7/2
Step-by-step explanation:
p(x) = 2x^2 - 5x - 42
p(x) = (x - 6)(2x + 7)
x - 6 + 6 = 0 + 6
x = 6
2x + 7 - 7 = 0 - 7
2x / 2 = -7 / 2
x = -7/2
x = 6, -7/2
Ответ: