4y^2-0.76*2.0-2y=0

Simple and best practice solution for 4y^2-0.76*2.0-2y=0 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 4y^2-0.76*2.0-2y=0 equation:


Simplifying
4y2 + -0.76 * 2.0 + -2y = 0

Multiply -0.76 * 2.0
4y2 + -1.52 + -2y = 0

Reorder the terms:
-1.52 + -2y + 4y2 = 0

Solving
-1.52 + -2y + 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'.
-0.38 + -0.5y + y2 = 0

Move the constant term to the right:

Add '0.38' to each side of the equation.
-0.38 + -0.5y + 0.38 + y2 = 0 + 0.38

Reorder the terms:
-0.38 + 0.38 + -0.5y + y2 = 0 + 0.38

Combine like terms: -0.38 + 0.38 = 0.00
0.00 + -0.5y + y2 = 0 + 0.38
-0.5y + y2 = 0 + 0.38

Combine like terms: 0 + 0.38 = 0.38
-0.5y + y2 = 0.38

The y term is -0.5y.  Take half its coefficient (-0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
-0.5y + 0.0625 + y2 = 0.38 + 0.0625

Reorder the terms:
0.0625 + -0.5y + y2 = 0.38 + 0.0625

Combine like terms: 0.38 + 0.0625 = 0.4425
0.0625 + -0.5y + y2 = 0.4425

Factor a perfect square on the left side:
(y + -0.25)(y + -0.25) = 0.4425

Calculate the square root of the right side: 0.665206735

Break this problem into two subproblems by setting 
(y + -0.25) equal to 0.665206735 and -0.665206735.

Subproblem 1

y + -0.25 = 0.665206735 Simplifying y + -0.25 = 0.665206735 Reorder the terms: -0.25 + y = 0.665206735 Solving -0.25 + y = 0.665206735 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + y = 0.665206735 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + y = 0.665206735 + 0.25 y = 0.665206735 + 0.25 Combine like terms: 0.665206735 + 0.25 = 0.915206735 y = 0.915206735 Simplifying y = 0.915206735

Subproblem 2

y + -0.25 = -0.665206735 Simplifying y + -0.25 = -0.665206735 Reorder the terms: -0.25 + y = -0.665206735 Solving -0.25 + y = -0.665206735 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + y = -0.665206735 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + y = -0.665206735 + 0.25 y = -0.665206735 + 0.25 Combine like terms: -0.665206735 + 0.25 = -0.415206735 y = -0.415206735 Simplifying y = -0.415206735

Solution

The solution to the problem is based on the solutions from the subproblems. y = {0.915206735, -0.415206735}

See similar equations:

| -3d-21=0 | | 2x-2=3x-22 | | x/54=cos(69) | | 12-(6s+7)=9-5s | | 2x-9-8x=10 | | 10-n=-6 | | 2d-3=-5 | | 6m+2(2m+3)=-24 | | 1/3(y-5) | | 4-2(x-2)+2x=4 | | V/5-3=1 | | -10=-5(d-7) | | x-90x-15=180 | | x/61x-13=180 | | -7(d+2)=49 | | -2x+8=5x+57 | | 9x+8x=9x+26-8x | | x(4x+5)=520 | | 3(y+3)=-3 | | f(x)=5.6x | | 3.2x-7.4=2.1+1.5 | | h=300x3/3.14r^2 | | .27x/260.45 | | y=7(x+4)(x+1) | | 3(-2x-5)=21 | | (25+9x)=(8x+30) | | 4x=300-20 | | y=8(x+4)(x-8) | | (X-13)+(x-13)+52=180 | | 1/5(a-10)=3 | | 5-6m=-13 | | 6*1/3y-1=-1 |

Equations solver categories