SOLUTION: r^2-r-6/3r-9

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Question 118580This question is from textbook
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r^2-r-6/3r-9 This question is from textbook

Answer by checkley71(8403) About Me  (Show Source):
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r^2-r-6/3r-9
r^2-r-2r-9
r^2-3r-9
using the quadratic equation: x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
r=(3+-sqrt[-3^2-4*1*-9])/2*1
r=(3+-sqrt[9+36])/2
r=(3+-sqrt45)/2
r=(3+-6.7)/2
r=(3+6.7)/2
r=9.7/2
r=4.85 answer.
r=(3-6.7)/2
r=-3.7/2
r=-1.85 answer.