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The roots of the equation are 7 and -4, because 7 - 4 = 3 and 7. - 4 = -28
Step-by-step explanation:
The positive number is equal to 7.
Assuming that the number is equal to "x" we have:

By the sum and product method, we have:


<span>B) y = -3x3
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Answer:
y=2x^2+1
Step-by-step explanation:
a quadratic equation has a x^2 term