(3x^2-4x+5)+(-x^2+6x+7)=

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Solution for (3x^2-4x+5)+(-x^2+6x+7)= equation:


Simplifying
(3x2 + -4x + 5) + (-1x2 + 6x + 7) = 0

Reorder the terms:
(5 + -4x + 3x2) + (-1x2 + 6x + 7) = 0

Remove parenthesis around (5 + -4x + 3x2)
5 + -4x + 3x2 + (-1x2 + 6x + 7) = 0

Reorder the terms:
5 + -4x + 3x2 + (7 + 6x + -1x2) = 0

Remove parenthesis around (7 + 6x + -1x2)
5 + -4x + 3x2 + 7 + 6x + -1x2 = 0

Reorder the terms:
5 + 7 + -4x + 6x + 3x2 + -1x2 = 0

Combine like terms: 5 + 7 = 12
12 + -4x + 6x + 3x2 + -1x2 = 0

Combine like terms: -4x + 6x = 2x
12 + 2x + 3x2 + -1x2 = 0

Combine like terms: 3x2 + -1x2 = 2x2
12 + 2x + 2x2 = 0

Solving
12 + 2x + 2x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(6 + x + x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(6 + x + x2)' equal to zero and attempt to solve: Simplifying 6 + x + x2 = 0 Solving 6 + x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-6' to each side of the equation. 6 + x + -6 + x2 = 0 + -6 Reorder the terms: 6 + -6 + x + x2 = 0 + -6 Combine like terms: 6 + -6 = 0 0 + x + x2 = 0 + -6 x + x2 = 0 + -6 Combine like terms: 0 + -6 = -6 x + x2 = -6 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. x + 0.25 + x2 = -6 + 0.25 Reorder the terms: 0.25 + x + x2 = -6 + 0.25 Combine like terms: -6 + 0.25 = -5.75 0.25 + x + x2 = -5.75 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = -5.75 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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