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Find the roots of the equation using the Quadratic Formula
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$-9x^2+12x-4=0$
Learn how to solve equations problems step by step online. Find the roots of -9x^2+12x+-4=0. Find the roots of the equation using the Quadratic Formula. For a simpler handling of the equation, change the sign of all terms, multiplying the entire whole by -1. The trinomial 9x^2-12x+4 is a perfect square trinomial, because it's discriminant is equal to zero. Using the perfect square trinomial formula.