Final Answer
Step-by-step Solution
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Factor the polynomial $x^2+6x$. Add and subtract $\left(\frac{b}{2}\right)^2$, replacing $b$ by it's value $6$
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$x^2+6x+9-9=-911$
Learn how to solve quadratic equations problems step by step online. Solve the quadratic equation x^2+6x=-911. Factor the polynomial x^2+6x. Add and subtract \left(\frac{b}{2}\right)^2, replacing b by it's value 6. Now, we can factor x^2+6x+9 as a squared binomial of the form \left(x+\frac{b}{2}\right)^2. The square root of 9 is . We need to isolate the dependent variable x, we can do that by simultaneously subtracting -9 from both sides of the equation.