15x^2-35=-22x

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Solution for 15x^2-35=-22x equation:


Simplifying
15x2 + -35 = -22x

Reorder the terms:
-35 + 15x2 = -22x

Solving
-35 + 15x2 = -22x

Solving for variable 'x'.

Reorder the terms:
-35 + 22x + 15x2 = -22x + 22x

Combine like terms: -22x + 22x = 0
-35 + 22x + 15x2 = 0

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

Divide each side by '15'.
-2.333333333 + 1.466666667x + x2 = 0

Move the constant term to the right:

Add '2.333333333' to each side of the equation.
-2.333333333 + 1.466666667x + 2.333333333 + x2 = 0 + 2.333333333

Reorder the terms:
-2.333333333 + 2.333333333 + 1.466666667x + x2 = 0 + 2.333333333

Combine like terms: -2.333333333 + 2.333333333 = 0.000000000
0.000000000 + 1.466666667x + x2 = 0 + 2.333333333
1.466666667x + x2 = 0 + 2.333333333

Combine like terms: 0 + 2.333333333 = 2.333333333
1.466666667x + x2 = 2.333333333

The x term is 1.466666667x.  Take half its coefficient (0.7333333335).
Square it (0.5377777780) and add it to both sides.

Add '0.5377777780' to each side of the equation.
1.466666667x + 0.5377777780 + x2 = 2.333333333 + 0.5377777780

Reorder the terms:
0.5377777780 + 1.466666667x + x2 = 2.333333333 + 0.5377777780

Combine like terms: 2.333333333 + 0.5377777780 = 2.871111111
0.5377777780 + 1.466666667x + x2 = 2.871111111

Factor a perfect square on the left side:
(x + 0.7333333335)(x + 0.7333333335) = 2.871111111

Calculate the square root of the right side: 1.694435337

Break this problem into two subproblems by setting 
(x + 0.7333333335) equal to 1.694435337 and -1.694435337.

Subproblem 1

x + 0.7333333335 = 1.694435337 Simplifying x + 0.7333333335 = 1.694435337 Reorder the terms: 0.7333333335 + x = 1.694435337 Solving 0.7333333335 + x = 1.694435337 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.7333333335' to each side of the equation. 0.7333333335 + -0.7333333335 + x = 1.694435337 + -0.7333333335 Combine like terms: 0.7333333335 + -0.7333333335 = 0.0000000000 0.0000000000 + x = 1.694435337 + -0.7333333335 x = 1.694435337 + -0.7333333335 Combine like terms: 1.694435337 + -0.7333333335 = 0.9611020035 x = 0.9611020035 Simplifying x = 0.9611020035

Subproblem 2

x + 0.7333333335 = -1.694435337 Simplifying x + 0.7333333335 = -1.694435337 Reorder the terms: 0.7333333335 + x = -1.694435337 Solving 0.7333333335 + x = -1.694435337 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.7333333335' to each side of the equation. 0.7333333335 + -0.7333333335 + x = -1.694435337 + -0.7333333335 Combine like terms: 0.7333333335 + -0.7333333335 = 0.0000000000 0.0000000000 + x = -1.694435337 + -0.7333333335 x = -1.694435337 + -0.7333333335 Combine like terms: -1.694435337 + -0.7333333335 = -2.4277686705 x = -2.4277686705 Simplifying x = -2.4277686705

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.9611020035, -2.4277686705}

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