Final Answer
$x=2.316625,\:x=-4.316625$
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Step-by-step Solution
Specify the solving method
1
Factor the polynomial $x^2+2x$. Add and subtract $\left(\frac{b}{2}\right)^2$, replacing $b$ by it's value $2$
$x^2+2x+1-1=10$
Learn how to solve quadratic equations problems step by step online.
$x^2+2x+1-1=10$
Learn how to solve quadratic equations problems step by step online. Solve the quadratic equation x^2+2x=10. Factor the polynomial x^2+2x. Add and subtract \left(\frac{b}{2}\right)^2, replacing b by it's value 2. Now, we can factor x^2+2x+1 as a squared binomial of the form \left(x+\frac{b}{2}\right)^2. The square root of 1 is . We need to isolate the dependent variable x, we can do that by simultaneously subtracting -1 from both sides of the equation.
Final Answer
$x=2.316625,\:x=-4.316625$