6y(y+6)=35

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Solution for 6y(y+6)=35 equation:


Simplifying
6y(y + 6) = 35

Reorder the terms:
6y(6 + y) = 35
(6 * 6y + y * 6y) = 35
(36y + 6y2) = 35

Solving
36y + 6y2 = 35

Solving for variable 'y'.

Reorder the terms:
-35 + 36y + 6y2 = 35 + -35

Combine like terms: 35 + -35 = 0
-35 + 36y + 6y2 = 0

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

Divide each side by '6'.
-5.833333333 + 6y + y2 = 0

Move the constant term to the right:

Add '5.833333333' to each side of the equation.
-5.833333333 + 6y + 5.833333333 + y2 = 0 + 5.833333333

Reorder the terms:
-5.833333333 + 5.833333333 + 6y + y2 = 0 + 5.833333333

Combine like terms: -5.833333333 + 5.833333333 = 0.000000000
0.000000000 + 6y + y2 = 0 + 5.833333333
6y + y2 = 0 + 5.833333333

Combine like terms: 0 + 5.833333333 = 5.833333333
6y + y2 = 5.833333333

The y term is 6y.  Take half its coefficient (3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
6y + 9 + y2 = 5.833333333 + 9

Reorder the terms:
9 + 6y + y2 = 5.833333333 + 9

Combine like terms: 5.833333333 + 9 = 14.833333333
9 + 6y + y2 = 14.833333333

Factor a perfect square on the left side:
(y + 3)(y + 3) = 14.833333333

Calculate the square root of the right side: 3.851406669

Break this problem into two subproblems by setting 
(y + 3) equal to 3.851406669 and -3.851406669.

Subproblem 1

y + 3 = 3.851406669 Simplifying y + 3 = 3.851406669 Reorder the terms: 3 + y = 3.851406669 Solving 3 + y = 3.851406669 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + y = 3.851406669 + -3 Combine like terms: 3 + -3 = 0 0 + y = 3.851406669 + -3 y = 3.851406669 + -3 Combine like terms: 3.851406669 + -3 = 0.851406669 y = 0.851406669 Simplifying y = 0.851406669

Subproblem 2

y + 3 = -3.851406669 Simplifying y + 3 = -3.851406669 Reorder the terms: 3 + y = -3.851406669 Solving 3 + y = -3.851406669 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + y = -3.851406669 + -3 Combine like terms: 3 + -3 = 0 0 + y = -3.851406669 + -3 y = -3.851406669 + -3 Combine like terms: -3.851406669 + -3 = -6.851406669 y = -6.851406669 Simplifying y = -6.851406669

Solution

The solution to the problem is based on the solutions from the subproblems. y = {0.851406669, -6.851406669}

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