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Find the roots of the polynomial $\frac{x^2+2x+4}{\left(x+1\right)^3}$ by putting it in the form of an equation and then set it equal to zero
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$\frac{x^2+2x+4}{\left(x+1\right)^3}=0$
Learn how to solve equations problems step by step online. Find the roots of (x^2+2x+4)/((x+1)^3). Find the roots of the polynomial \frac{x^2+2x+4}{\left(x+1\right)^3} by putting it in the form of an equation and then set it equal to zero. Multiply both sides of the equation by \left(x+1\right)^3. To find the roots of a polynomial of the form ax^2+bx+c we use the quadratic formula, where in this case a=1, b=2 and c=4. Then substitute the values of the coefficients of the equation in the quadratic formula: \displaystyle x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}. Simplifying.