Final Answer
Step-by-step Solution
Specify the solving method
Subtract the values $1$ and $-3$
Learn how to solve quadratic equations problems step by step online.
$-2+x^2+2\left(x^2+7x\right)=0$
Learn how to solve quadratic equations problems step by step online. Solve the quadratic equation x^2+12(x^2+7x)+-3=0. Subtract the values 1 and -3. Multiply the single term 2 by each term of the polynomial \left(x^2+7x\right). Combining like terms x^2 and 2x^2. To find the roots of a polynomial of the form ax^2+bx+c we use the quadratic formula, where in this case a=3, b=14 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}.