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how to say the quadratic formula in words. Bx c 0. By using this correct form I prevented myself from using the wrong values for ab or c which could result in an incorrect solution.
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The standard form of a quadratic equation is ax² bx c. In Sals completing the square vid he takes the exact same equation ax2bxc 0 and he completes the square to end up isolating x and forming the equation into the quadratic formula. This substitution transforms the equation into a familiar quadratic equation in terms of u which in this case can be solved by factoring.
The c in the formula is the constant.
With the quadratic in standard form ax2 bxc 0 a x 2 b x c 0 multiply ac a c. Plug the values of these variables into the formula. Rewrite the equation replacing the bx b x term with two terms using the numbers found in step 1 1 as coefficients of x. You can solve a quadratic equations using the quadratic formula or factoring.
