17x-2x^2=10

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Solution for 17x-2x^2=10 equation:


Simplifying
17x + -2x2 = 10

Solving
17x + -2x2 = 10

Solving for variable 'x'.

Reorder the terms:
-10 + 17x + -2x2 = 10 + -10

Combine like terms: 10 + -10 = 0
-10 + 17x + -2x2 = 0

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

Divide each side by '-2'.
5 + -8.5x + x2 = 0

Move the constant term to the right:

Add '-5' to each side of the equation.
5 + -8.5x + -5 + x2 = 0 + -5

Reorder the terms:
5 + -5 + -8.5x + x2 = 0 + -5

Combine like terms: 5 + -5 = 0
0 + -8.5x + x2 = 0 + -5
-8.5x + x2 = 0 + -5

Combine like terms: 0 + -5 = -5
-8.5x + x2 = -5

The x term is -8.5x.  Take half its coefficient (-4.25).
Square it (18.0625) and add it to both sides.

Add '18.0625' to each side of the equation.
-8.5x + 18.0625 + x2 = -5 + 18.0625

Reorder the terms:
18.0625 + -8.5x + x2 = -5 + 18.0625

Combine like terms: -5 + 18.0625 = 13.0625
18.0625 + -8.5x + x2 = 13.0625

Factor a perfect square on the left side:
(x + -4.25)(x + -4.25) = 13.0625

Calculate the square root of the right side: 3.614208074

Break this problem into two subproblems by setting 
(x + -4.25) equal to 3.614208074 and -3.614208074.

Subproblem 1

x + -4.25 = 3.614208074 Simplifying x + -4.25 = 3.614208074 Reorder the terms: -4.25 + x = 3.614208074 Solving -4.25 + x = 3.614208074 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.25' to each side of the equation. -4.25 + 4.25 + x = 3.614208074 + 4.25 Combine like terms: -4.25 + 4.25 = 0.00 0.00 + x = 3.614208074 + 4.25 x = 3.614208074 + 4.25 Combine like terms: 3.614208074 + 4.25 = 7.864208074 x = 7.864208074 Simplifying x = 7.864208074

Subproblem 2

x + -4.25 = -3.614208074 Simplifying x + -4.25 = -3.614208074 Reorder the terms: -4.25 + x = -3.614208074 Solving -4.25 + x = -3.614208074 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.25' to each side of the equation. -4.25 + 4.25 + x = -3.614208074 + 4.25 Combine like terms: -4.25 + 4.25 = 0.00 0.00 + x = -3.614208074 + 4.25 x = -3.614208074 + 4.25 Combine like terms: -3.614208074 + 4.25 = 0.635791926 x = 0.635791926 Simplifying x = 0.635791926

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.864208074, 0.635791926}

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