(−b±√b2−4ac)÷2a the square root of b2−4ac entirely.
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You'll typically use it when solving a quadratic equation - when factoring isn't obvious.
The Quadratic formula in mathematics is used to solve quadratic equations in algebra. The simplest way to solve these equations is to set each of the factors to zero and then solve each factor separately.
There are an infinite number of different quadratic equations. The quadratic formula is a single formula that can be used to find the pair of solutions to every quadratic equation.
I just agreed this section in algebra 1, so I'm pretty sure it's ax2 (ax squared) +bx+c.
Well, if the given quadratic equation cannot be factored, nor completed by the square, try using the quadratic formula.