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Find the roots of the equation using the Quadratic Formula
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$\left(3x-9\right)\left(3x+4\right)=0$
Learn how to solve problems step by step online. Find the roots of (3x-9)(3x+4). Find the roots of the equation using the Quadratic Formula. Break the equation in 2 factors and set each equal to zero, to obtain. Solve the equation (1). We need to isolate the dependent variable , we can do that by simultaneously subtracting -9 from both sides of the equation.