## deedee28 3 years ago help me solve this problem by quadratic formula: y^2+7y-6=0

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1. lgbasallote

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. deedee28

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

3. deedee28

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. i<3science

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

5. i<3science

6. deedee28

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

7. deedee28

did I get that right this time?

8. i<3science

yes :) good job!