2u^2+13u+24=u^2+36

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Solution for 2u^2+13u+24=u^2+36 equation:


Simplifying
2u2 + 13u + 24 = u2 + 36

Reorder the terms:
24 + 13u + 2u2 = u2 + 36

Reorder the terms:
24 + 13u + 2u2 = 36 + u2

Solving
24 + 13u + 2u2 = 36 + u2

Solving for variable 'u'.

Reorder the terms:
24 + -36 + 13u + 2u2 + -1u2 = 36 + u2 + -36 + -1u2

Combine like terms: 24 + -36 = -12
-12 + 13u + 2u2 + -1u2 = 36 + u2 + -36 + -1u2

Combine like terms: 2u2 + -1u2 = 1u2
-12 + 13u + 1u2 = 36 + u2 + -36 + -1u2

Reorder the terms:
-12 + 13u + 1u2 = 36 + -36 + u2 + -1u2

Combine like terms: 36 + -36 = 0
-12 + 13u + 1u2 = 0 + u2 + -1u2
-12 + 13u + 1u2 = u2 + -1u2

Combine like terms: u2 + -1u2 = 0
-12 + 13u + 1u2 = 0

Begin completing the square.

Move the constant term to the right:

Add '12' to each side of the equation.
-12 + 13u + 12 + u2 = 0 + 12

Reorder the terms:
-12 + 12 + 13u + u2 = 0 + 12

Combine like terms: -12 + 12 = 0
0 + 13u + u2 = 0 + 12
13u + u2 = 0 + 12

Combine like terms: 0 + 12 = 12
13u + u2 = 12

The u term is 13u.  Take half its coefficient (6.5).
Square it (42.25) and add it to both sides.

Add '42.25' to each side of the equation.
13u + 42.25 + u2 = 12 + 42.25

Reorder the terms:
42.25 + 13u + u2 = 12 + 42.25

Combine like terms: 12 + 42.25 = 54.25
42.25 + 13u + u2 = 54.25

Factor a perfect square on the left side:
(u + 6.5)(u + 6.5) = 54.25

Calculate the square root of the right side: 7.365459931

Break this problem into two subproblems by setting 
(u + 6.5) equal to 7.365459931 and -7.365459931.

Subproblem 1

u + 6.5 = 7.365459931 Simplifying u + 6.5 = 7.365459931 Reorder the terms: 6.5 + u = 7.365459931 Solving 6.5 + u = 7.365459931 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-6.5' to each side of the equation. 6.5 + -6.5 + u = 7.365459931 + -6.5 Combine like terms: 6.5 + -6.5 = 0.0 0.0 + u = 7.365459931 + -6.5 u = 7.365459931 + -6.5 Combine like terms: 7.365459931 + -6.5 = 0.865459931 u = 0.865459931 Simplifying u = 0.865459931

Subproblem 2

u + 6.5 = -7.365459931 Simplifying u + 6.5 = -7.365459931 Reorder the terms: 6.5 + u = -7.365459931 Solving 6.5 + u = -7.365459931 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-6.5' to each side of the equation. 6.5 + -6.5 + u = -7.365459931 + -6.5 Combine like terms: 6.5 + -6.5 = 0.0 0.0 + u = -7.365459931 + -6.5 u = -7.365459931 + -6.5 Combine like terms: -7.365459931 + -6.5 = -13.865459931 u = -13.865459931 Simplifying u = -13.865459931

Solution

The solution to the problem is based on the solutions from the subproblems. u = {0.865459931, -13.865459931}

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