SOLUTION: Solve the following equation for X by using the quadratic formula. 4x^2+2x-4=0

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Question 136609: Solve the following equation for X by using the quadratic formula.
4x^2+2x-4=0

Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!
The quadratic formula gives the solutions to any equation of the form ax%5E2%2Bby%2Bc=0. Take the coefficient values from your equation and put them into the formula:


x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+

Then do the arithmetic. Generally, when you are just solving an equation that is not part of a word problem involving measurements, you leave the answer in radical form (unless the radical turns out to be a perfect square). Just remember to take the square root of any perfect square factors of the number under the radical. For example, if you had sqrt%2850%29, that is the same as sqrt%2825%2A2%29=sqrt%2825%29sqrt%282%29=5sqrt%282%29.