2y^2+30y-3y^2+4y-14-y=

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Solution for 2y^2+30y-3y^2+4y-14-y= equation:


Simplifying
2y2 + 30y + -3y2 + 4y + -14 + -1y = 0

Reorder the terms:
-14 + 30y + 4y + -1y + 2y2 + -3y2 = 0

Combine like terms: 30y + 4y = 34y
-14 + 34y + -1y + 2y2 + -3y2 = 0

Combine like terms: 34y + -1y = 33y
-14 + 33y + 2y2 + -3y2 = 0

Combine like terms: 2y2 + -3y2 = -1y2
-14 + 33y + -1y2 = 0

Solving
-14 + 33y + -1y2 = 0

Solving for variable 'y'.

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
14 + -33y + y2 = 0

Move the constant term to the right:

Add '-14' to each side of the equation.
14 + -33y + -14 + y2 = 0 + -14

Reorder the terms:
14 + -14 + -33y + y2 = 0 + -14

Combine like terms: 14 + -14 = 0
0 + -33y + y2 = 0 + -14
-33y + y2 = 0 + -14

Combine like terms: 0 + -14 = -14
-33y + y2 = -14

The y term is -33y.  Take half its coefficient (-16.5).
Square it (272.25) and add it to both sides.

Add '272.25' to each side of the equation.
-33y + 272.25 + y2 = -14 + 272.25

Reorder the terms:
272.25 + -33y + y2 = -14 + 272.25

Combine like terms: -14 + 272.25 = 258.25
272.25 + -33y + y2 = 258.25

Factor a perfect square on the left side:
(y + -16.5)(y + -16.5) = 258.25

Calculate the square root of the right side: 16.07015868

Break this problem into two subproblems by setting 
(y + -16.5) equal to 16.07015868 and -16.07015868.

Subproblem 1

y + -16.5 = 16.07015868 Simplifying y + -16.5 = 16.07015868 Reorder the terms: -16.5 + y = 16.07015868 Solving -16.5 + y = 16.07015868 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '16.5' to each side of the equation. -16.5 + 16.5 + y = 16.07015868 + 16.5 Combine like terms: -16.5 + 16.5 = 0.0 0.0 + y = 16.07015868 + 16.5 y = 16.07015868 + 16.5 Combine like terms: 16.07015868 + 16.5 = 32.57015868 y = 32.57015868 Simplifying y = 32.57015868

Subproblem 2

y + -16.5 = -16.07015868 Simplifying y + -16.5 = -16.07015868 Reorder the terms: -16.5 + y = -16.07015868 Solving -16.5 + y = -16.07015868 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '16.5' to each side of the equation. -16.5 + 16.5 + y = -16.07015868 + 16.5 Combine like terms: -16.5 + 16.5 = 0.0 0.0 + y = -16.07015868 + 16.5 y = -16.07015868 + 16.5 Combine like terms: -16.07015868 + 16.5 = 0.42984132 y = 0.42984132 Simplifying y = 0.42984132

Solution

The solution to the problem is based on the solutions from the subproblems. y = {32.57015868, 0.42984132}

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