Simplify the rational expression.
3x + 12 / x² + 5x + 4
a. 12 / 4 - x
b. - 3/x+1
c. 3 / x - 1
d. 3 / x + 1
3(x + 4)/(x + 4)(x + 1)
Both the (x + 4) would cancel out since they divide by eachother.
You are left with 3/x + 1
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