SOLUTION: Use the quadratic formula to solve the equation. Give two forms for each solution: an expression containing a radical and a calculator approximation rounded off to two decimal plac

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Use the quadratic formula to solve the equation. Give two forms for each solution: an expression containing a radical and a calculator approximation rounded off to two decimal plac      Log On


   

Question 986583: Use the quadratic formula to solve the equation. Give two forms for each solution: an expression containing a radical and a calculator approximation rounded off to two decimal places
x(2x + 8) = −4
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!






The roots of:



are



If you first divide both sides of your equation by 2, then

, , and .

Just plug in the numbers and do the arithmetic. You can do your own calculator work, too.

John

My calculator said it, I believe it, that settles it