SOLUTION: two x to the power of two + 11 x = 5

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Question 974508: two x to the power of two + 11 x = 5
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
(2x)^2+11x=5
4x^2 +11x -5=0
quadratic formula
x= (1/8) [-11 +/- sqrt (121+80)];;sqrt(201)=14.18
=(1/8) [ -11 +/- 14.18]
=-25.18/8 and 3.18/8
x= -3.1475 and 0.3975
graph%28300%2C300%2C-10%2C10%2C-10%2C10%2C4x%5E2%2B11x-5%29