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Simplifying 30x2 + 20x + 2380 = 0 Reorder the terms: 2380 + 20x + 30x2 = 0 Solving 2380 + 20x + 30x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '10'. 10(238 + 2x + 3x2) = 0 Ignore the factor 10.Subproblem 1
Set the factor '(238 + 2x + 3x2)' equal to zero and attempt to solve: Simplifying 238 + 2x + 3x2 = 0 Solving 238 + 2x + 3x2 = 0 Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. 79.33333333 + 0.6666666667x + x2 = 0 Move the constant term to the right: Add '-79.33333333' to each side of the equation. 79.33333333 + 0.6666666667x + -79.33333333 + x2 = 0 + -79.33333333 Reorder the terms: 79.33333333 + -79.33333333 + 0.6666666667x + x2 = 0 + -79.33333333 Combine like terms: 79.33333333 + -79.33333333 = 0.00000000 0.00000000 + 0.6666666667x + x2 = 0 + -79.33333333 0.6666666667x + x2 = 0 + -79.33333333 Combine like terms: 0 + -79.33333333 = -79.33333333 0.6666666667x + x2 = -79.33333333 The x term is 0.6666666667x. Take half its coefficient (0.3333333334). Square it (0.1111111112) and add it to both sides. Add '0.1111111112' to each side of the equation. 0.6666666667x + 0.1111111112 + x2 = -79.33333333 + 0.1111111112 Reorder the terms: 0.1111111112 + 0.6666666667x + x2 = -79.33333333 + 0.1111111112 Combine like terms: -79.33333333 + 0.1111111112 = -79.2222222188 0.1111111112 + 0.6666666667x + x2 = -79.2222222188 Factor a perfect square on the left side: (x + 0.3333333334)(x + 0.3333333334) = -79.2222222188 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.
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