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how to solve a quadratic equation khan academy. This exercise practices using the quadratic formula to solve quadratic equations. Solve quadratic equations using the quadratic formula.
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There are three basic methods for solving quadratic equations. Check out a video on deriving the quadratic equation if you are interested there are dozens of good explanations on the internet. We learn that we may sometimes get extraneous solutions.
Now the quadratic formula it applies to any quadratic equation of the form-- we could put the 0 on the left hand side.
How do you solve quadratic equations. Factoring using the quadratic formula and completing the square. Well we can just subtract 5 from both sides of this equation right there. That is one solution to the equation or you can add 7 to both sides of that equation and.
