## anonymous 4 years ago help me solve this problem by quadratic formula: y^2+7y-6=0

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1. anonymous

quadratic formula is $\large y = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$ do you know which is a, b and c in your problem?

2. anonymous

a=1, b=7, c=-6

3. anonymous

so, i plugged in the numbers and I got 7+- the square root of 53 over 2...I do not think that is right.

4. anonymous

Go back and recheck your formula. You probably forgot to attach your negative sign to b.

5. anonymous

6. anonymous

okay, -7+- the square root of 73, over 2.

7. anonymous

did I get that right this time?

8. anonymous

yes :) good job!