10-5x(2-3x)=-15

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Solution for 10-5x(2-3x)=-15 equation:


Simplifying
10 + -5x(2 + -3x) = -15
10 + (2 * -5x + -3x * -5x) = -15
10 + (-10x + 15x2) = -15

Solving
10 + -10x + 15x2 = -15

Solving for variable 'x'.

Reorder the terms:
10 + 15 + -10x + 15x2 = -15 + 15

Combine like terms: 10 + 15 = 25
25 + -10x + 15x2 = -15 + 15

Combine like terms: -15 + 15 = 0
25 + -10x + 15x2 = 0

Factor out the Greatest Common Factor (GCF), '5'.
5(5 + -2x + 3x2) = 0

Ignore the factor 5.

Subproblem 1

Set the factor '(5 + -2x + 3x2)' equal to zero and attempt to solve: Simplifying 5 + -2x + 3x2 = 0 Solving 5 + -2x + 3x2 = 0 Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. 1.666666667 + -0.6666666667x + x2 = 0 Move the constant term to the right: Add '-1.666666667' to each side of the equation. 1.666666667 + -0.6666666667x + -1.666666667 + x2 = 0 + -1.666666667 Reorder the terms: 1.666666667 + -1.666666667 + -0.6666666667x + x2 = 0 + -1.666666667 Combine like terms: 1.666666667 + -1.666666667 = 0.000000000 0.000000000 + -0.6666666667x + x2 = 0 + -1.666666667 -0.6666666667x + x2 = 0 + -1.666666667 Combine like terms: 0 + -1.666666667 = -1.666666667 -0.6666666667x + x2 = -1.666666667 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 = -1.666666667 + 0.1111111112 Reorder the terms: 0.1111111112 + -0.6666666667x + x2 = -1.666666667 + 0.1111111112 Combine like terms: -1.666666667 + 0.1111111112 = -1.5555555558 0.1111111112 + -0.6666666667x + x2 = -1.5555555558 Factor a perfect square on the left side: (x + -0.3333333334)(x + -0.3333333334) = -1.5555555558 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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