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Find the roots of the equation using the Quadratic Formula
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$12-r-r^2=0$
Learn how to solve equations problems step by step online. Find the roots of 12-r-r^2=0. Find the roots of the equation using the Quadratic Formula. Sort the polynomial 12-r-r^2 in descending order to handle it more easily. Factor the trinomial by -1 for an easier handling. Factor the trinomial -\left(r^2+r-12\right) finding two numbers that multiply to form -12 and added form 1.