Final Answer
Step-by-step Solution
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For a simpler handling of the equation, change the sign of all terms, multiplying the entire whole by $-1$
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$2x^2-x-1\cdot -1=0$
Learn how to solve problems step by step online. Solve the quadratic equation -2x^2+x+-1=0. For a simpler handling of the equation, change the sign of all terms, multiplying the entire whole by -1. Multiply -1 times -1. Use the complete the square method to factor the trinomial of the form ax^2+bx+c. Take common factor a (2) to all terms. Add and subtract \displaystyle\left(\frac{b}{2a}\right)^2.