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

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


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

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

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

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

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

Combine like terms: 6 + 7 = 13
13 + -3x + -4x + 5x2 + -3x2 = 0

Combine like terms: -3x + -4x = -7x
13 + -7x + 5x2 + -3x2 = 0

Combine like terms: 5x2 + -3x2 = 2x2
13 + -7x + 2x2 = 0

Solving
13 + -7x + 2x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
2 the coefficient of the squared term: 

Divide each side by '2'.
6.5 + -3.5x + x2 = 0

Move the constant term to the right:

Add '-6.5' to each side of the equation.
6.5 + -3.5x + -6.5 + x2 = 0 + -6.5

Reorder the terms:
6.5 + -6.5 + -3.5x + x2 = 0 + -6.5

Combine like terms: 6.5 + -6.5 = 0.0
0.0 + -3.5x + x2 = 0 + -6.5
-3.5x + x2 = 0 + -6.5

Combine like terms: 0 + -6.5 = -6.5
-3.5x + x2 = -6.5

The x term is -3.5x.  Take half its coefficient (-1.75).
Square it (3.0625) and add it to both sides.

Add '3.0625' to each side of the equation.
-3.5x + 3.0625 + x2 = -6.5 + 3.0625

Reorder the terms:
3.0625 + -3.5x + x2 = -6.5 + 3.0625

Combine like terms: -6.5 + 3.0625 = -3.4375
3.0625 + -3.5x + x2 = -3.4375

Factor a perfect square on the left side:
(x + -1.75)(x + -1.75) = -3.4375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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