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Find the roots of the equation using the Quadratic Formula
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$x^2+9x+20=0$
Learn how to solve equations problems step by step online. Find the roots of x^2+9x+20=0. Find the roots of the equation using the Quadratic Formula. Factor the trinomial x^2+9x+20 finding two numbers that multiply to form 20 and added form 9. Thus. Break the equation in 2 factors and set each equal to zero, to obtain.