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Find the roots of the equation using the Quadratic Formula
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$-\left(4-x\right)\left(x+1\right)=0$
Learn how to solve problems step by step online. Find the roots of -(4-x)(x+1). Find the roots of the equation using the Quadratic Formula. Multiply both sides of the equation by -1. Break the equation in 2 factors and set each equal to zero, to obtain. Solve the equation (1).