(y-2)(y-2)=12

Simple and best practice solution for (y-2)(y-2)=12 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 (y-2)(y-2)=12 equation:


Simplifying
(y + -2)(y + -2) = 12

Reorder the terms:
(-2 + y)(y + -2) = 12

Reorder the terms:
(-2 + y)(-2 + y) = 12

Multiply (-2 + y) * (-2 + y)
(-2(-2 + y) + y(-2 + y)) = 12
((-2 * -2 + y * -2) + y(-2 + y)) = 12
((4 + -2y) + y(-2 + y)) = 12
(4 + -2y + (-2 * y + y * y)) = 12
(4 + -2y + (-2y + y2)) = 12

Combine like terms: -2y + -2y = -4y
(4 + -4y + y2) = 12

Solving
4 + -4y + y2 = 12

Solving for variable 'y'.

Reorder the terms:
4 + -12 + -4y + y2 = 12 + -12

Combine like terms: 4 + -12 = -8
-8 + -4y + y2 = 12 + -12

Combine like terms: 12 + -12 = 0
-8 + -4y + y2 = 0

Begin completing the square.

Move the constant term to the right:

Add '8' to each side of the equation.
-8 + -4y + 8 + y2 = 0 + 8

Reorder the terms:
-8 + 8 + -4y + y2 = 0 + 8

Combine like terms: -8 + 8 = 0
0 + -4y + y2 = 0 + 8
-4y + y2 = 0 + 8

Combine like terms: 0 + 8 = 8
-4y + y2 = 8

The y term is -4y.  Take half its coefficient (-2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
-4y + 4 + y2 = 8 + 4

Reorder the terms:
4 + -4y + y2 = 8 + 4

Combine like terms: 8 + 4 = 12
4 + -4y + y2 = 12

Factor a perfect square on the left side:
(y + -2)(y + -2) = 12

Calculate the square root of the right side: 3.464101615

Break this problem into two subproblems by setting 
(y + -2) equal to 3.464101615 and -3.464101615.

Subproblem 1

y + -2 = 3.464101615 Simplifying y + -2 = 3.464101615 Reorder the terms: -2 + y = 3.464101615 Solving -2 + y = 3.464101615 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + y = 3.464101615 + 2 Combine like terms: -2 + 2 = 0 0 + y = 3.464101615 + 2 y = 3.464101615 + 2 Combine like terms: 3.464101615 + 2 = 5.464101615 y = 5.464101615 Simplifying y = 5.464101615

Subproblem 2

y + -2 = -3.464101615 Simplifying y + -2 = -3.464101615 Reorder the terms: -2 + y = -3.464101615 Solving -2 + y = -3.464101615 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + y = -3.464101615 + 2 Combine like terms: -2 + 2 = 0 0 + y = -3.464101615 + 2 y = -3.464101615 + 2 Combine like terms: -3.464101615 + 2 = -1.464101615 y = -1.464101615 Simplifying y = -1.464101615

Solution

The solution to the problem is based on the solutions from the subproblems. y = {5.464101615, -1.464101615}

See similar equations:

| 4(20x+75)=1100 | | 200-20x=90x-20 | | 38.95-S=22.50 | | sin(2x)+1=0 | | sin(2pi)+1=0 | | 4x(x+8)=-24-3x | | 3x-5(x-5)=-2+3x-13 | | -2(3w-6)+3w=3(w+5) | | y=log(12x+2)-2 | | 5w-4+2(4w+2)=-2(w+3) | | 4x/5-3x/5-9 | | 8x-2.12=4x+4.18 | | 7s-18=180 | | 2s=180 | | L+20=180 | | 4(w-3)-1=-3(-4w+5)-4w | | 0=x^2+12x+6 | | 3y+y^2=0 | | 4l+60=180 | | 3f+6=180 | | 12x-14=(-14) | | 40-340x=5-45x | | 6f+3=180 | | 2i-6=180 | | 8i-14=180 | | -x^2-12x-6=0 | | 4y/2-2=6 | | 2x+5x-11=(-46) | | O+13=180 | | X/816 | | 4o-28=180 | | 6x-1=23whatisx |

Equations solver categories