4y^2-40y+25=0

Simple and best practice solution for 4y^2-40y+25=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^2-40y+25=0 equation:


Simplifying
4y2 + -40y + 25 = 0

Reorder the terms:
25 + -40y + 4y2 = 0

Solving
25 + -40y + 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'.
6.25 + -10y + y2 = 0

Move the constant term to the right:

Add '-6.25' to each side of the equation.
6.25 + -10y + -6.25 + y2 = 0 + -6.25

Reorder the terms:
6.25 + -6.25 + -10y + y2 = 0 + -6.25

Combine like terms: 6.25 + -6.25 = 0.00
0.00 + -10y + y2 = 0 + -6.25
-10y + y2 = 0 + -6.25

Combine like terms: 0 + -6.25 = -6.25
-10y + y2 = -6.25

The y term is -10y.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10y + 25 + y2 = -6.25 + 25

Reorder the terms:
25 + -10y + y2 = -6.25 + 25

Combine like terms: -6.25 + 25 = 18.75
25 + -10y + y2 = 18.75

Factor a perfect square on the left side:
(y + -5)(y + -5) = 18.75

Calculate the square root of the right side: 4.330127019

Break this problem into two subproblems by setting 
(y + -5) equal to 4.330127019 and -4.330127019.

Subproblem 1

y + -5 = 4.330127019 Simplifying y + -5 = 4.330127019 Reorder the terms: -5 + y = 4.330127019 Solving -5 + y = 4.330127019 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + y = 4.330127019 + 5 Combine like terms: -5 + 5 = 0 0 + y = 4.330127019 + 5 y = 4.330127019 + 5 Combine like terms: 4.330127019 + 5 = 9.330127019 y = 9.330127019 Simplifying y = 9.330127019

Subproblem 2

y + -5 = -4.330127019 Simplifying y + -5 = -4.330127019 Reorder the terms: -5 + y = -4.330127019 Solving -5 + y = -4.330127019 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + y = -4.330127019 + 5 Combine like terms: -5 + 5 = 0 0 + y = -4.330127019 + 5 y = -4.330127019 + 5 Combine like terms: -4.330127019 + 5 = 0.669872981 y = 0.669872981 Simplifying y = 0.669872981

Solution

The solution to the problem is based on the solutions from the subproblems. y = {9.330127019, 0.669872981}

See similar equations:

| y=2(4x-1) | | 5(m+7)=-17+2m+70 | | 7x-8=28-5x | | 11+5-2+3-4+7-3+x=55-6+3-4+2+6-4-x | | -3x^2+21x-36=0 | | x=-3+3(4) | | 3x^2+21x-36=0 | | 4+6+7+8+7-2+3x=6 | | 4*17*49-172=x | | 19*31*0.5=2x | | -6+6y+5y=38 | | (x-6)(x+3)(x-5)=0 | | 4x+3-5x+8-2x+3-2*167+2-4*3-2x+3-6*4+2x-5+2*3x-6=4 | | (3-5i)+x=2+7i | | 4x+15x-24=38 | | 4x+15x-24=39 | | 3x^4=7 | | (8+15)= | | (x-5)(x+3)(x+1-3i)(x+1+3i)=0 | | 6w-8=64 | | 16x^2+16xy+y^2=1 | | 5x-89+(x+-192)=100000000000000 | | 36=3x^2+21x | | f(-5/2)=x-5 | | 4*f*f=2f+3-2*4x+3-2x*6+3-2f+3-2 | | 5*5*x*x+d=2d+x | | 4*x*x*4*4=2x+2*2 | | x^3+3x^2(y)-5y^2=12 | | b-2=x+4-b+x | | X+4+3n=60 | | 4f+2-3=f*3*2 | | 2*3*2=4*6*x |

Equations solver categories