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Find the roots of the equation using the Quadratic Formula
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$\frac{\left(x+x^3\right)^2\left(3x+1\right)}{\left(\sin\left(x^2\right)+1\right)^7\cos\left(9x+7\right)}=0$
Learn how to solve equations problems step by step online. Find the roots of ((x+x^3)^2(3x+1))/((sin(x^2)+1)^7cos(9x+7)). Find the roots of the equation using the Quadratic Formula. Multiply both sides of the equation by \left(\sin\left(x^2\right)+1\right)^7\cos\left(9x+7\right). Break the equation in 2 factors and set each equal to zero, to obtain. Solve the equation (1).