(2x^2-3x+26)+(7x^2+6x-47)=

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Solution for (2x^2-3x+26)+(7x^2+6x-47)= equation:


Simplifying
(2x2 + -3x + 26) + (7x2 + 6x + -47) = 0

Reorder the terms:
(26 + -3x + 2x2) + (7x2 + 6x + -47) = 0

Remove parenthesis around (26 + -3x + 2x2)
26 + -3x + 2x2 + (7x2 + 6x + -47) = 0

Reorder the terms:
26 + -3x + 2x2 + (-47 + 6x + 7x2) = 0

Remove parenthesis around (-47 + 6x + 7x2)
26 + -3x + 2x2 + -47 + 6x + 7x2 = 0

Reorder the terms:
26 + -47 + -3x + 6x + 2x2 + 7x2 = 0

Combine like terms: 26 + -47 = -21
-21 + -3x + 6x + 2x2 + 7x2 = 0

Combine like terms: -3x + 6x = 3x
-21 + 3x + 2x2 + 7x2 = 0

Combine like terms: 2x2 + 7x2 = 9x2
-21 + 3x + 9x2 = 0

Solving
-21 + 3x + 9x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3'.
3(-7 + x + 3x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-7 + x + 3x2)' equal to zero and attempt to solve: Simplifying -7 + x + 3x2 = 0 Solving -7 + x + 3x2 = 0 Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. -2.333333333 + 0.3333333333x + x2 = 0 Move the constant term to the right: Add '2.333333333' to each side of the equation. -2.333333333 + 0.3333333333x + 2.333333333 + x2 = 0 + 2.333333333 Reorder the terms: -2.333333333 + 2.333333333 + 0.3333333333x + x2 = 0 + 2.333333333 Combine like terms: -2.333333333 + 2.333333333 = 0.000000000 0.000000000 + 0.3333333333x + x2 = 0 + 2.333333333 0.3333333333x + x2 = 0 + 2.333333333 Combine like terms: 0 + 2.333333333 = 2.333333333 0.3333333333x + x2 = 2.333333333 The x term is x. Take half its coefficient (0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. 0.3333333333x + 0.25 + x2 = 2.333333333 + 0.25 Reorder the terms: 0.25 + 0.3333333333x + x2 = 2.333333333 + 0.25 Combine like terms: 2.333333333 + 0.25 = 2.583333333 0.25 + 0.3333333333x + x2 = 2.583333333 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = 2.583333333 Calculate the square root of the right side: 1.607275127 Break this problem into two subproblems by setting (x + 0.5) equal to 1.607275127 and -1.607275127.

Subproblem 1

x + 0.5 = 1.607275127 Simplifying x + 0.5 = 1.607275127 Reorder the terms: 0.5 + x = 1.607275127 Solving 0.5 + x = 1.607275127 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 1.607275127 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 1.607275127 + -0.5 x = 1.607275127 + -0.5 Combine like terms: 1.607275127 + -0.5 = 1.107275127 x = 1.107275127 Simplifying x = 1.107275127

Subproblem 2

x + 0.5 = -1.607275127 Simplifying x + 0.5 = -1.607275127 Reorder the terms: 0.5 + x = -1.607275127 Solving 0.5 + x = -1.607275127 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -1.607275127 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -1.607275127 + -0.5 x = -1.607275127 + -0.5 Combine like terms: -1.607275127 + -0.5 = -2.107275127 x = -2.107275127 Simplifying x = -2.107275127

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.107275127, -2.107275127}

Solution

x = {1.107275127, -2.107275127}

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