SOLUTION: 1.) 9x^2+18x=-8 (solve by completing the square an coefficient of x^2 is 1) I'm looking for the processes of these. The book examples don't help.

Question 1026809: 1.) 9x^2+18x=-8 (solve by completing the square an coefficient of x^2 is 1)
I'm looking for the processes of these. The book examples don't help.
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
A good lesson is contained here: How to solve but also includes how to Complete the Square, for a quadratic equation
Answer by MathTherapy(10552) (Show Source): You can put this solution on YOUR website!
1.) 9x^2+18x=-8 (solve by completing the square an coefficient of x^2 is 1)
I'm looking for the processes of these. The book examples don't help.

In response to: "Comment from student: Thank you. It was 18 and not 19, sorry."

------ Factoring out 9 to get a coefficient of 1 on

---- Halving the value of b, squaring the result, then adding to both sides
---- Substituting + 2 for b

------- Taking square root of both sides

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