14x^2-10x^2+63x-45=

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Solution for 14x^2-10x^2+63x-45= equation:


Simplifying
14x2 + -10x2 + 63x + -45 = 0

Reorder the terms:
-45 + 63x + 14x2 + -10x2 = 0

Combine like terms: 14x2 + -10x2 = 4x2
-45 + 63x + 4x2 = 0

Solving
-45 + 63x + 4x2 = 0

Solving for variable 'x'.

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

Divide each side by '4'.
-11.25 + 15.75x + x2 = 0

Move the constant term to the right:

Add '11.25' to each side of the equation.
-11.25 + 15.75x + 11.25 + x2 = 0 + 11.25

Reorder the terms:
-11.25 + 11.25 + 15.75x + x2 = 0 + 11.25

Combine like terms: -11.25 + 11.25 = 0.00
0.00 + 15.75x + x2 = 0 + 11.25
15.75x + x2 = 0 + 11.25

Combine like terms: 0 + 11.25 = 11.25
15.75x + x2 = 11.25

The x term is 15.75x.  Take half its coefficient (7.875).
Square it (62.015625) and add it to both sides.

Add '62.015625' to each side of the equation.
15.75x + 62.015625 + x2 = 11.25 + 62.015625

Reorder the terms:
62.015625 + 15.75x + x2 = 11.25 + 62.015625

Combine like terms: 11.25 + 62.015625 = 73.265625
62.015625 + 15.75x + x2 = 73.265625

Factor a perfect square on the left side:
(x + 7.875)(x + 7.875) = 73.265625

Calculate the square root of the right side: 8.559534158

Break this problem into two subproblems by setting 
(x + 7.875) equal to 8.559534158 and -8.559534158.

Subproblem 1

x + 7.875 = 8.559534158 Simplifying x + 7.875 = 8.559534158 Reorder the terms: 7.875 + x = 8.559534158 Solving 7.875 + x = 8.559534158 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7.875' to each side of the equation. 7.875 + -7.875 + x = 8.559534158 + -7.875 Combine like terms: 7.875 + -7.875 = 0.000 0.000 + x = 8.559534158 + -7.875 x = 8.559534158 + -7.875 Combine like terms: 8.559534158 + -7.875 = 0.684534158 x = 0.684534158 Simplifying x = 0.684534158

Subproblem 2

x + 7.875 = -8.559534158 Simplifying x + 7.875 = -8.559534158 Reorder the terms: 7.875 + x = -8.559534158 Solving 7.875 + x = -8.559534158 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7.875' to each side of the equation. 7.875 + -7.875 + x = -8.559534158 + -7.875 Combine like terms: 7.875 + -7.875 = 0.000 0.000 + x = -8.559534158 + -7.875 x = -8.559534158 + -7.875 Combine like terms: -8.559534158 + -7.875 = -16.434534158 x = -16.434534158 Simplifying x = -16.434534158

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.684534158, -16.434534158}

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