4y^2+19y-148=0

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Solution for 4y^2+19y-148=0 equation:


Simplifying
4y2 + 19y + -148 = 0

Reorder the terms:
-148 + 19y + 4y2 = 0

Solving
-148 + 19y + 4y2 = 0

Solving for variable 'y'.

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

Divide each side by '4'.
-37 + 4.75y + y2 = 0

Move the constant term to the right:

Add '37' to each side of the equation.
-37 + 4.75y + 37 + y2 = 0 + 37

Reorder the terms:
-37 + 37 + 4.75y + y2 = 0 + 37

Combine like terms: -37 + 37 = 0
0 + 4.75y + y2 = 0 + 37
4.75y + y2 = 0 + 37

Combine like terms: 0 + 37 = 37
4.75y + y2 = 37

The y term is 4.75y.  Take half its coefficient (2.375).
Square it (5.640625) and add it to both sides.

Add '5.640625' to each side of the equation.
4.75y + 5.640625 + y2 = 37 + 5.640625

Reorder the terms:
5.640625 + 4.75y + y2 = 37 + 5.640625

Combine like terms: 37 + 5.640625 = 42.640625
5.640625 + 4.75y + y2 = 42.640625

Factor a perfect square on the left side:
(y + 2.375)(y + 2.375) = 42.640625

Calculate the square root of the right side: 6.529978943

Break this problem into two subproblems by setting 
(y + 2.375) equal to 6.529978943 and -6.529978943.

Subproblem 1

y + 2.375 = 6.529978943 Simplifying y + 2.375 = 6.529978943 Reorder the terms: 2.375 + y = 6.529978943 Solving 2.375 + y = 6.529978943 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-2.375' to each side of the equation. 2.375 + -2.375 + y = 6.529978943 + -2.375 Combine like terms: 2.375 + -2.375 = 0.000 0.000 + y = 6.529978943 + -2.375 y = 6.529978943 + -2.375 Combine like terms: 6.529978943 + -2.375 = 4.154978943 y = 4.154978943 Simplifying y = 4.154978943

Subproblem 2

y + 2.375 = -6.529978943 Simplifying y + 2.375 = -6.529978943 Reorder the terms: 2.375 + y = -6.529978943 Solving 2.375 + y = -6.529978943 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-2.375' to each side of the equation. 2.375 + -2.375 + y = -6.529978943 + -2.375 Combine like terms: 2.375 + -2.375 = 0.000 0.000 + y = -6.529978943 + -2.375 y = -6.529978943 + -2.375 Combine like terms: -6.529978943 + -2.375 = -8.904978943 y = -8.904978943 Simplifying y = -8.904978943

Solution

The solution to the problem is based on the solutions from the subproblems. y = {4.154978943, -8.904978943}

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