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2 years ago

10

When using the inspection method, which number would you add to (and subtract from) the constant term of the numerator in this e

xpression so the polynomial in the numerator will have (x+4) as a factor?
x^2+7x+15/x+4

1 answer:

olasank [31]2 years ago

3 0

If i were you, i would add one to 7x and fifteen. this gives you x^2+8x+16, a perfect square of x+4.

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