(9x^2-3x+25)+(2x^2+6x-48)=

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Solution for (9x^2-3x+25)+(2x^2+6x-48)= equation:


Simplifying
(9x2 + -3x + 25) + (2x2 + 6x + -48) = 0

Reorder the terms:
(25 + -3x + 9x2) + (2x2 + 6x + -48) = 0

Remove parenthesis around (25 + -3x + 9x2)
25 + -3x + 9x2 + (2x2 + 6x + -48) = 0

Reorder the terms:
25 + -3x + 9x2 + (-48 + 6x + 2x2) = 0

Remove parenthesis around (-48 + 6x + 2x2)
25 + -3x + 9x2 + -48 + 6x + 2x2 = 0

Reorder the terms:
25 + -48 + -3x + 6x + 9x2 + 2x2 = 0

Combine like terms: 25 + -48 = -23
-23 + -3x + 6x + 9x2 + 2x2 = 0

Combine like terms: -3x + 6x = 3x
-23 + 3x + 9x2 + 2x2 = 0

Combine like terms: 9x2 + 2x2 = 11x2
-23 + 3x + 11x2 = 0

Solving
-23 + 3x + 11x2 = 0

Solving for variable 'x'.

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

Divide each side by '11'.
-2.090909091 + 0.2727272727x + x2 = 0

Move the constant term to the right:

Add '2.090909091' to each side of the equation.
-2.090909091 + 0.2727272727x + 2.090909091 + x2 = 0 + 2.090909091

Reorder the terms:
-2.090909091 + 2.090909091 + 0.2727272727x + x2 = 0 + 2.090909091

Combine like terms: -2.090909091 + 2.090909091 = 0.000000000
0.000000000 + 0.2727272727x + x2 = 0 + 2.090909091
0.2727272727x + x2 = 0 + 2.090909091

Combine like terms: 0 + 2.090909091 = 2.090909091
0.2727272727x + x2 = 2.090909091

The x term is 0.2727272727x.  Take half its coefficient (0.1363636364).
Square it (0.01859504133) and add it to both sides.

Add '0.01859504133' to each side of the equation.
0.2727272727x + 0.01859504133 + x2 = 2.090909091 + 0.01859504133

Reorder the terms:
0.01859504133 + 0.2727272727x + x2 = 2.090909091 + 0.01859504133

Combine like terms: 2.090909091 + 0.01859504133 = 2.10950413233
0.01859504133 + 0.2727272727x + x2 = 2.10950413233

Factor a perfect square on the left side:
(x + 0.1363636364)(x + 0.1363636364) = 2.10950413233

Calculate the square root of the right side: 1.45241321

Break this problem into two subproblems by setting 
(x + 0.1363636364) equal to 1.45241321 and -1.45241321.

Subproblem 1

x + 0.1363636364 = 1.45241321 Simplifying x + 0.1363636364 = 1.45241321 Reorder the terms: 0.1363636364 + x = 1.45241321 Solving 0.1363636364 + x = 1.45241321 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1363636364' to each side of the equation. 0.1363636364 + -0.1363636364 + x = 1.45241321 + -0.1363636364 Combine like terms: 0.1363636364 + -0.1363636364 = 0.0000000000 0.0000000000 + x = 1.45241321 + -0.1363636364 x = 1.45241321 + -0.1363636364 Combine like terms: 1.45241321 + -0.1363636364 = 1.3160495736 x = 1.3160495736 Simplifying x = 1.3160495736

Subproblem 2

x + 0.1363636364 = -1.45241321 Simplifying x + 0.1363636364 = -1.45241321 Reorder the terms: 0.1363636364 + x = -1.45241321 Solving 0.1363636364 + x = -1.45241321 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1363636364' to each side of the equation. 0.1363636364 + -0.1363636364 + x = -1.45241321 + -0.1363636364 Combine like terms: 0.1363636364 + -0.1363636364 = 0.0000000000 0.0000000000 + x = -1.45241321 + -0.1363636364 x = -1.45241321 + -0.1363636364 Combine like terms: -1.45241321 + -0.1363636364 = -1.5887768464 x = -1.5887768464 Simplifying x = -1.5887768464

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.3160495736, -1.5887768464}

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