Question

X^2+7x +12 divide x+3

Answer 1

x + 4

Explanation:

Use synthetic division with -3 as the divisor. This -3 comes from (x + 3).

-3 / 1 7 12

-3 -12

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1 4 0

Since the remainder is 0, -3 is a root and (x + 3) is a factor. The other factor has the coefficients 1 and 4, which works out to (x + 4).

x^2+7x +12 divided by x+3 is x + 4.