=(4x^2-14x+7)-(3-8x)

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Solution for =(4x^2-14x+7)-(3-8x) equation:


Simplifying
0 = (4x2 + -14x + 7) + -1(3 + -8x)

Reorder the terms:
0 = (7 + -14x + 4x2) + -1(3 + -8x)

Remove parenthesis around (7 + -14x + 4x2)
0 = 7 + -14x + 4x2 + -1(3 + -8x)
0 = 7 + -14x + 4x2 + (3 * -1 + -8x * -1)
0 = 7 + -14x + 4x2 + (-3 + 8x)

Reorder the terms:
0 = 7 + -3 + -14x + 8x + 4x2

Combine like terms: 7 + -3 = 4
0 = 4 + -14x + 8x + 4x2

Combine like terms: -14x + 8x = -6x
0 = 4 + -6x + 4x2

Solving
0 = 4 + -6x + 4x2

Solving for variable 'x'.

Combine like terms: 0 + -4 = -4
-4 + 6x + -4x2 = 4 + -6x + 4x2 + -4 + 6x + -4x2

Reorder the terms:
-4 + 6x + -4x2 = 4 + -4 + -6x + 6x + 4x2 + -4x2

Combine like terms: 4 + -4 = 0
-4 + 6x + -4x2 = 0 + -6x + 6x + 4x2 + -4x2
-4 + 6x + -4x2 = -6x + 6x + 4x2 + -4x2

Combine like terms: -6x + 6x = 0
-4 + 6x + -4x2 = 0 + 4x2 + -4x2
-4 + 6x + -4x2 = 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
-4 + 6x + -4x2 = 0

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

Ignore the factor 2.

Subproblem 1

Set the factor '(-2 + 3x + -2x2)' equal to zero and attempt to solve: Simplifying -2 + 3x + -2x2 = 0 Solving -2 + 3x + -2x2 = 0 Begin completing the square. Divide all terms by -2 the coefficient of the squared term: Divide each side by '-2'. 1 + -1.5x + x2 = 0 Move the constant term to the right: Add '-1' to each side of the equation. 1 + -1.5x + -1 + x2 = 0 + -1 Reorder the terms: 1 + -1 + -1.5x + x2 = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1.5x + x2 = 0 + -1 -1.5x + x2 = 0 + -1 Combine like terms: 0 + -1 = -1 -1.5x + x2 = -1 The x term is -1.5x. Take half its coefficient (-0.75). Square it (0.5625) and add it to both sides. Add '0.5625' to each side of the equation. -1.5x + 0.5625 + x2 = -1 + 0.5625 Reorder the terms: 0.5625 + -1.5x + x2 = -1 + 0.5625 Combine like terms: -1 + 0.5625 = -0.4375 0.5625 + -1.5x + x2 = -0.4375 Factor a perfect square on the left side: (x + -0.75)(x + -0.75) = -0.4375 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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