-2x(x+3)+5(x-2)=x+1

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Solution for -2x(x+3)+5(x-2)=x+1 equation:


Simplifying
-2x(x + 3) + 5(x + -2) = x + 1

Reorder the terms:
-2x(3 + x) + 5(x + -2) = x + 1
(3 * -2x + x * -2x) + 5(x + -2) = x + 1
(-6x + -2x2) + 5(x + -2) = x + 1

Reorder the terms:
-6x + -2x2 + 5(-2 + x) = x + 1
-6x + -2x2 + (-2 * 5 + x * 5) = x + 1
-6x + -2x2 + (-10 + 5x) = x + 1

Reorder the terms:
-10 + -6x + 5x + -2x2 = x + 1

Combine like terms: -6x + 5x = -1x
-10 + -1x + -2x2 = x + 1

Reorder the terms:
-10 + -1x + -2x2 = 1 + x

Solving
-10 + -1x + -2x2 = 1 + x

Solving for variable 'x'.

Reorder the terms:
-10 + -1 + -1x + -1x + -2x2 = 1 + x + -1 + -1x

Combine like terms: -10 + -1 = -11
-11 + -1x + -1x + -2x2 = 1 + x + -1 + -1x

Combine like terms: -1x + -1x = -2x
-11 + -2x + -2x2 = 1 + x + -1 + -1x

Reorder the terms:
-11 + -2x + -2x2 = 1 + -1 + x + -1x

Combine like terms: 1 + -1 = 0
-11 + -2x + -2x2 = 0 + x + -1x
-11 + -2x + -2x2 = x + -1x

Combine like terms: x + -1x = 0
-11 + -2x + -2x2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(11 + 2x + 2x2) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(11 + 2x + 2x2)' equal to zero and attempt to solve: Simplifying 11 + 2x + 2x2 = 0 Solving 11 + 2x + 2x2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. 5.5 + x + x2 = 0 Move the constant term to the right: Add '-5.5' to each side of the equation. 5.5 + x + -5.5 + x2 = 0 + -5.5 Reorder the terms: 5.5 + -5.5 + x + x2 = 0 + -5.5 Combine like terms: 5.5 + -5.5 = 0.0 0.0 + x + x2 = 0 + -5.5 x + x2 = 0 + -5.5 Combine like terms: 0 + -5.5 = -5.5 x + x2 = -5.5 The x term is x. Take half its coefficient (0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. + 0.25 + x2 = -5.5 + 0.25 Combine like terms: + 0.25 = 1.25 1.25 + x2 = -5.5 + 0.25 Combine like terms: -5.5 + 0.25 = -5.25 1.25 + x2 = -5.25 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = -5.25 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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