SOLUTION: I am doing quadratic expression problems but I am stuck on this question: -4=19x-5x^2 I am thinking that I should zero out the right side and and make a complete equation on th

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Question 996504: I am doing quadratic expression problems but I am stuck on this question:
-4=19x-5x^2
I am thinking that I should zero out the right side and and make a complete equation on the left. By doing this, do I then use the quadratic formula or do I complete the square to solve this problem. Am I on the right track?

Found 2 solutions by ankor@dixie-net.com, MathTherapy:
Answer by ankor@dixie-net.com(22740)   (Show Source): You can put this solution on YOUR website!
-4=19x-5x^2
make it into a quadratic equation on the left
5x^2 - 19x - 4 = 0
Use the quadratic formula, completing the square works well when the coefficient of x^2 is 1, but not here
a=5; b=-19; c=-4
I got x = -.2 and x = 4 (checks out in the original equation)

Answer by MathTherapy(10552)   (Show Source): You can put this solution on YOUR website!
I am doing quadratic expression problems but I am stuck on this question:
-4=19x-5x^2
I am thinking that I should zero out the right side and and make a complete equation on the left. By doing this, do I then use the quadratic formula or do I complete the square to solve this problem. Am I on the right track?
Duplicate.
See Problem # 996527. It's explained here!!
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