SOLUTION: Use the quadratic formula to solve the equation. Simpplify solutions, if possible. 2x^2 + 4x = 5

Algebra ->  Radicals -> SOLUTION: Use the quadratic formula to solve the equation. Simpplify solutions, if possible. 2x^2 + 4x = 5      Log On


   



Question 239452: Use the quadratic formula to solve the equation. Simpplify solutions, if possible.
2x^2 + 4x = 5

Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


Step 1: Put the equation into standard form, that is into



form.

Your equation becomes:



So, , , and

Then substitute the coefficients into the quadratic formula:





You can do your own arithmetic. To simplify the radical, perform the prime factorization of the radicand. Remove pairs of prime factors from the radicand and put one of each pair outside the radicand. Then reduce the fractions if possible. Remember, this is a quadratic equation, so there are always two roots.

John