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Simplifying -0.3x2 + 4x + -70 = 0 Reorder the terms: -70 + 4x + -0.3x2 = 0 Solving -70 + 4x + -0.3x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -0.3 the coefficient of the squared term: Divide each side by '-0.3'. 233.3333333 + -13.33333333x + x2 = 0 Move the constant term to the right: Add '-233.3333333' to each side of the equation. 233.3333333 + -13.33333333x + -233.3333333 + x2 = 0 + -233.3333333 Reorder the terms: 233.3333333 + -233.3333333 + -13.33333333x + x2 = 0 + -233.3333333 Combine like terms: 233.3333333 + -233.3333333 = 0.0000000 0.0000000 + -13.33333333x + x2 = 0 + -233.3333333 -13.33333333x + x2 = 0 + -233.3333333 Combine like terms: 0 + -233.3333333 = -233.3333333 -13.33333333x + x2 = -233.3333333 The x term is -13.33333333x. Take half its coefficient (-6.666666665). Square it (44.44444442) and add it to both sides. Add '44.44444442' to each side of the equation. -13.33333333x + 44.44444442 + x2 = -233.3333333 + 44.44444442 Reorder the terms: 44.44444442 + -13.33333333x + x2 = -233.3333333 + 44.44444442 Combine like terms: -233.3333333 + 44.44444442 = -188.88888888 44.44444442 + -13.33333333x + x2 = -188.88888888 Factor a perfect square on the left side: (x + -6.666666665)(x + -6.666666665) = -188.88888888 Can't calculate square root of the right side. The solution to this equation could not be determined.
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