SOLUTION: Solve the following equation by using the quadratic formula. (Enter solutions from smallest to largest. If there is one solution with a multiplicity of two, enter it in both answer

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Solve the following equation by using the quadratic formula. (Enter solutions from smallest to largest. If there is one solution with a multiplicity of two, enter it in both answer      Log On


   

Question 442637: Solve the following equation by using the quadratic formula. (Enter solutions from smallest to largest. If there is one solution with a multiplicity of two, enter it in both answer boxes.)
2x^2-5x=7
x = ?
x = ?
Please show me the steps to get the answer. Thanks
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
Find the roots of the equation by quadratic formula

a= 2 b= -5 c= -7

b^2-4ac=25-56
b^2-4ac=81sqrt%2881%29=9
x=%28-b%2B-sqrt%28b%5E2-4ac%29%29%2F%282a%29
x1=%28-b%2Bsqrt%28b%5E2-4ac%29%29%2F%282a%29
x1=(5+9)/4
x1= 3.5
x2=(5-9)/4
x2= -1