25y^2-16y-32=0

Simple and best practice solution for 25y^2-16y-32=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 25y^2-16y-32=0 equation:


Simplifying
25y2 + -16y + -32 = 0

Reorder the terms:
-32 + -16y + 25y2 = 0

Solving
-32 + -16y + 25y2 = 0

Solving for variable 'y'.

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

Divide each side by '25'.
-1.28 + -0.64y + y2 = 0

Move the constant term to the right:

Add '1.28' to each side of the equation.
-1.28 + -0.64y + 1.28 + y2 = 0 + 1.28

Reorder the terms:
-1.28 + 1.28 + -0.64y + y2 = 0 + 1.28

Combine like terms: -1.28 + 1.28 = 0.00
0.00 + -0.64y + y2 = 0 + 1.28
-0.64y + y2 = 0 + 1.28

Combine like terms: 0 + 1.28 = 1.28
-0.64y + y2 = 1.28

The y term is -0.64y.  Take half its coefficient (-0.32).
Square it (0.1024) and add it to both sides.

Add '0.1024' to each side of the equation.
-0.64y + 0.1024 + y2 = 1.28 + 0.1024

Reorder the terms:
0.1024 + -0.64y + y2 = 1.28 + 0.1024

Combine like terms: 1.28 + 0.1024 = 1.3824
0.1024 + -0.64y + y2 = 1.3824

Factor a perfect square on the left side:
(y + -0.32)(y + -0.32) = 1.3824

Calculate the square root of the right side: 1.175755077

Break this problem into two subproblems by setting 
(y + -0.32) equal to 1.175755077 and -1.175755077.

Subproblem 1

y + -0.32 = 1.175755077 Simplifying y + -0.32 = 1.175755077 Reorder the terms: -0.32 + y = 1.175755077 Solving -0.32 + y = 1.175755077 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '0.32' to each side of the equation. -0.32 + 0.32 + y = 1.175755077 + 0.32 Combine like terms: -0.32 + 0.32 = 0.00 0.00 + y = 1.175755077 + 0.32 y = 1.175755077 + 0.32 Combine like terms: 1.175755077 + 0.32 = 1.495755077 y = 1.495755077 Simplifying y = 1.495755077

Subproblem 2

y + -0.32 = -1.175755077 Simplifying y + -0.32 = -1.175755077 Reorder the terms: -0.32 + y = -1.175755077 Solving -0.32 + y = -1.175755077 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '0.32' to each side of the equation. -0.32 + 0.32 + y = -1.175755077 + 0.32 Combine like terms: -0.32 + 0.32 = 0.00 0.00 + y = -1.175755077 + 0.32 y = -1.175755077 + 0.32 Combine like terms: -1.175755077 + 0.32 = -0.855755077 y = -0.855755077 Simplifying y = -0.855755077

Solution

The solution to the problem is based on the solutions from the subproblems. y = {1.495755077, -0.855755077}

See similar equations:

| -10=-1+9x | | ax-a(a+b)=-x-1(1+ab) | | .05x-6=-4 | | 9b+7b=27 | | 4x+7y=7000 | | (p*1/3)-3=114 | | 1-3+4p=-2p | | 40t^2+80t-110=0 | | -3x+8=16 | | 7t-12t=-5t | | -5(-3x-3)=-7(x-5)-20+22x | | -5+g+9g=10g-7 | | 5=3log(x) | | 3X+5+5x-25=180 | | 3v+6=6+3v | | g+47=-5g-7 | | 26=-8/5t | | 9k(k)-16k-25=0 | | -7c-8=c+120 | | 7-(s*0.15)=5.55 | | -3x+16i=-18+4yi | | (x+1)(-3x-5)=-1 | | c-89=-2c-8 | | x=2(600-x) | | Y=2.5(1)-2 | | 6r-3=6r | | 3+4d-14=15d-4d | | 36x+3=40 | | 7-2h=-6h-9 | | -5x+9=x+99 | | -96x^2+104x-8=0 | | 6a+16=4a-5 |

Equations solver categories