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Find the roots of the polynomial $x^2+x+2$ by putting it in the form of an equation and then set it equal to zero
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$x^2+x+2=0$
Learn how to solve equations problems step by step online. Find the roots of x^2+x+2. Find the roots of the polynomial x^2+x+2 by putting it in the form of an equation and then set it equal to zero. 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=1 and c=2. Then substitute the values of the coefficients of the equation in the quadratic formula: \displaystyle x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}. To obtain the two solutions, divide the equation in two equations, one when \pm is positive (+), and another when \pm is negative (-). Multiply -4 times 2.