x^2-7x+3=8x-10

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Solution for x^2-7x+3=8x-10 equation:


Simplifying
x2 + -7x + 3 = 8x + -10

Reorder the terms:
3 + -7x + x2 = 8x + -10

Reorder the terms:
3 + -7x + x2 = -10 + 8x

Solving
3 + -7x + x2 = -10 + 8x

Solving for variable 'x'.

Reorder the terms:
3 + 10 + -7x + -8x + x2 = -10 + 8x + 10 + -8x

Combine like terms: 3 + 10 = 13
13 + -7x + -8x + x2 = -10 + 8x + 10 + -8x

Combine like terms: -7x + -8x = -15x
13 + -15x + x2 = -10 + 8x + 10 + -8x

Reorder the terms:
13 + -15x + x2 = -10 + 10 + 8x + -8x

Combine like terms: -10 + 10 = 0
13 + -15x + x2 = 0 + 8x + -8x
13 + -15x + x2 = 8x + -8x

Combine like terms: 8x + -8x = 0
13 + -15x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-13' to each side of the equation.
13 + -15x + -13 + x2 = 0 + -13

Reorder the terms:
13 + -13 + -15x + x2 = 0 + -13

Combine like terms: 13 + -13 = 0
0 + -15x + x2 = 0 + -13
-15x + x2 = 0 + -13

Combine like terms: 0 + -13 = -13
-15x + x2 = -13

The x term is -15x.  Take half its coefficient (-7.5).
Square it (56.25) and add it to both sides.

Add '56.25' to each side of the equation.
-15x + 56.25 + x2 = -13 + 56.25

Reorder the terms:
56.25 + -15x + x2 = -13 + 56.25

Combine like terms: -13 + 56.25 = 43.25
56.25 + -15x + x2 = 43.25

Factor a perfect square on the left side:
(x + -7.5)(x + -7.5) = 43.25

Calculate the square root of the right side: 6.576473219

Break this problem into two subproblems by setting 
(x + -7.5) equal to 6.576473219 and -6.576473219.

Subproblem 1

x + -7.5 = 6.576473219 Simplifying x + -7.5 = 6.576473219 Reorder the terms: -7.5 + x = 6.576473219 Solving -7.5 + x = 6.576473219 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7.5' to each side of the equation. -7.5 + 7.5 + x = 6.576473219 + 7.5 Combine like terms: -7.5 + 7.5 = 0.0 0.0 + x = 6.576473219 + 7.5 x = 6.576473219 + 7.5 Combine like terms: 6.576473219 + 7.5 = 14.076473219 x = 14.076473219 Simplifying x = 14.076473219

Subproblem 2

x + -7.5 = -6.576473219 Simplifying x + -7.5 = -6.576473219 Reorder the terms: -7.5 + x = -6.576473219 Solving -7.5 + x = -6.576473219 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7.5' to each side of the equation. -7.5 + 7.5 + x = -6.576473219 + 7.5 Combine like terms: -7.5 + 7.5 = 0.0 0.0 + x = -6.576473219 + 7.5 x = -6.576473219 + 7.5 Combine like terms: -6.576473219 + 7.5 = 0.923526781 x = 0.923526781 Simplifying x = 0.923526781

Solution

The solution to the problem is based on the solutions from the subproblems. x = {14.076473219, 0.923526781}

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