Final Answer
Step-by-step Solution
Specify the solving method
Use the complete the square method to factor the trinomial of the form $ax^2+bx+c$. Take common factor $a$ ($-1$) to all terms
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$-\left(x^2+2x+7\right)=0$
Learn how to solve equations problems step by step online. Solve the quadratic equation -x^2-2x+-7=0. Use the complete the square method to factor the trinomial of the form ax^2+bx+c. Take common factor a (-1) to all terms. Add and subtract \displaystyle\left(\frac{b}{2a}\right)^2. Factor the perfect square trinomial x^2+2xx+1. Subtract the values 7 and -1.