2Y^2+19Y+35=Y^2+49

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Solution for 2Y^2+19Y+35=Y^2+49 equation:


Simplifying
2Y2 + 19Y + 35 = Y2 + 49

Reorder the terms:
35 + 19Y + 2Y2 = Y2 + 49

Reorder the terms:
35 + 19Y + 2Y2 = 49 + Y2

Solving
35 + 19Y + 2Y2 = 49 + Y2

Solving for variable 'Y'.

Reorder the terms:
35 + -49 + 19Y + 2Y2 + -1Y2 = 49 + Y2 + -49 + -1Y2

Combine like terms: 35 + -49 = -14
-14 + 19Y + 2Y2 + -1Y2 = 49 + Y2 + -49 + -1Y2

Combine like terms: 2Y2 + -1Y2 = 1Y2
-14 + 19Y + 1Y2 = 49 + Y2 + -49 + -1Y2

Reorder the terms:
-14 + 19Y + 1Y2 = 49 + -49 + Y2 + -1Y2

Combine like terms: 49 + -49 = 0
-14 + 19Y + 1Y2 = 0 + Y2 + -1Y2
-14 + 19Y + 1Y2 = Y2 + -1Y2

Combine like terms: Y2 + -1Y2 = 0
-14 + 19Y + 1Y2 = 0

Begin completing the square.

Move the constant term to the right:

Add '14' to each side of the equation.
-14 + 19Y + 14 + Y2 = 0 + 14

Reorder the terms:
-14 + 14 + 19Y + Y2 = 0 + 14

Combine like terms: -14 + 14 = 0
0 + 19Y + Y2 = 0 + 14
19Y + Y2 = 0 + 14

Combine like terms: 0 + 14 = 14
19Y + Y2 = 14

The Y term is 19Y.  Take half its coefficient (9.5).
Square it (90.25) and add it to both sides.

Add '90.25' to each side of the equation.
19Y + 90.25 + Y2 = 14 + 90.25

Reorder the terms:
90.25 + 19Y + Y2 = 14 + 90.25

Combine like terms: 14 + 90.25 = 104.25
90.25 + 19Y + Y2 = 104.25

Factor a perfect square on the left side:
(Y + 9.5)(Y + 9.5) = 104.25

Calculate the square root of the right side: 10.210288928

Break this problem into two subproblems by setting 
(Y + 9.5) equal to 10.210288928 and -10.210288928.

Subproblem 1

Y + 9.5 = 10.210288928 Simplifying Y + 9.5 = 10.210288928 Reorder the terms: 9.5 + Y = 10.210288928 Solving 9.5 + Y = 10.210288928 Solving for variable 'Y'. Move all terms containing Y to the left, all other terms to the right. Add '-9.5' to each side of the equation. 9.5 + -9.5 + Y = 10.210288928 + -9.5 Combine like terms: 9.5 + -9.5 = 0.0 0.0 + Y = 10.210288928 + -9.5 Y = 10.210288928 + -9.5 Combine like terms: 10.210288928 + -9.5 = 0.710288928 Y = 0.710288928 Simplifying Y = 0.710288928

Subproblem 2

Y + 9.5 = -10.210288928 Simplifying Y + 9.5 = -10.210288928 Reorder the terms: 9.5 + Y = -10.210288928 Solving 9.5 + Y = -10.210288928 Solving for variable 'Y'. Move all terms containing Y to the left, all other terms to the right. Add '-9.5' to each side of the equation. 9.5 + -9.5 + Y = -10.210288928 + -9.5 Combine like terms: 9.5 + -9.5 = 0.0 0.0 + Y = -10.210288928 + -9.5 Y = -10.210288928 + -9.5 Combine like terms: -10.210288928 + -9.5 = -19.710288928 Y = -19.710288928 Simplifying Y = -19.710288928

Solution

The solution to the problem is based on the solutions from the subproblems. Y = {0.710288928, -19.710288928}

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