5y^2-19y+6=0

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Solution for 5y^2-19y+6=0 equation:


Simplifying
5y2 + -19y + 6 = 0

Reorder the terms:
6 + -19y + 5y2 = 0

Solving
6 + -19y + 5y2 = 0

Solving for variable 'y'.

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

Divide each side by '5'.
1.2 + -3.8y + y2 = 0

Move the constant term to the right:

Add '-1.2' to each side of the equation.
1.2 + -3.8y + -1.2 + y2 = 0 + -1.2

Reorder the terms:
1.2 + -1.2 + -3.8y + y2 = 0 + -1.2

Combine like terms: 1.2 + -1.2 = 0.0
0.0 + -3.8y + y2 = 0 + -1.2
-3.8y + y2 = 0 + -1.2

Combine like terms: 0 + -1.2 = -1.2
-3.8y + y2 = -1.2

The y term is -3.8y.  Take half its coefficient (-1.9).
Square it (3.61) and add it to both sides.

Add '3.61' to each side of the equation.
-3.8y + 3.61 + y2 = -1.2 + 3.61

Reorder the terms:
3.61 + -3.8y + y2 = -1.2 + 3.61

Combine like terms: -1.2 + 3.61 = 2.41
3.61 + -3.8y + y2 = 2.41

Factor a perfect square on the left side:
(y + -1.9)(y + -1.9) = 2.41

Calculate the square root of the right side: 1.55241747

Break this problem into two subproblems by setting 
(y + -1.9) equal to 1.55241747 and -1.55241747.

Subproblem 1

y + -1.9 = 1.55241747 Simplifying y + -1.9 = 1.55241747 Reorder the terms: -1.9 + y = 1.55241747 Solving -1.9 + y = 1.55241747 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '1.9' to each side of the equation. -1.9 + 1.9 + y = 1.55241747 + 1.9 Combine like terms: -1.9 + 1.9 = 0.0 0.0 + y = 1.55241747 + 1.9 y = 1.55241747 + 1.9 Combine like terms: 1.55241747 + 1.9 = 3.45241747 y = 3.45241747 Simplifying y = 3.45241747

Subproblem 2

y + -1.9 = -1.55241747 Simplifying y + -1.9 = -1.55241747 Reorder the terms: -1.9 + y = -1.55241747 Solving -1.9 + y = -1.55241747 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '1.9' to each side of the equation. -1.9 + 1.9 + y = -1.55241747 + 1.9 Combine like terms: -1.9 + 1.9 = 0.0 0.0 + y = -1.55241747 + 1.9 y = -1.55241747 + 1.9 Combine like terms: -1.55241747 + 1.9 = 0.34758253 y = 0.34758253 Simplifying y = 0.34758253

Solution

The solution to the problem is based on the solutions from the subproblems. y = {3.45241747, 0.34758253}

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