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Simplifying -7w2 + 6w + -7 = 0 Reorder the terms: -7 + 6w + -7w2 = 0 Solving -7 + 6w + -7w2 = 0 Solving for variable 'w'. Begin completing the square. Divide all terms by -7 the coefficient of the squared term: Divide each side by '-7'. 1 + -0.8571428571w + w2 = 0 Move the constant term to the right: Add '-1' to each side of the equation. 1 + -0.8571428571w + -1 + w2 = 0 + -1 Reorder the terms: 1 + -1 + -0.8571428571w + w2 = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -0.8571428571w + w2 = 0 + -1 -0.8571428571w + w2 = 0 + -1 Combine like terms: 0 + -1 = -1 -0.8571428571w + w2 = -1 The w term is -0.8571428571w. Take half its coefficient (-0.4285714286). Square it (0.1836734694) and add it to both sides. Add '0.1836734694' to each side of the equation. -0.8571428571w + 0.1836734694 + w2 = -1 + 0.1836734694 Reorder the terms: 0.1836734694 + -0.8571428571w + w2 = -1 + 0.1836734694 Combine like terms: -1 + 0.1836734694 = -0.8163265306 0.1836734694 + -0.8571428571w + w2 = -0.8163265306 Factor a perfect square on the left side: (w + -0.4285714286)(w + -0.4285714286) = -0.8163265306 Can't calculate square root of the right side. The solution to this equation could not be determined.
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