17=8y*(y-2)

Simple and best practice solution for 17=8y*(y-2) 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 17=8y*(y-2) equation:


Simplifying
17 = 8y(y + -2)

Reorder the terms:
17 = 8y(-2 + y)
17 = (-2 * 8y + y * 8y)
17 = (-16y + 8y2)

Solving
17 = -16y + 8y2

Solving for variable 'y'.

Reorder the terms:
17 + 16y + -8y2 = -16y + 16y + 8y2 + -8y2

Combine like terms: -16y + 16y = 0
17 + 16y + -8y2 = 0 + 8y2 + -8y2
17 + 16y + -8y2 = 8y2 + -8y2

Combine like terms: 8y2 + -8y2 = 0
17 + 16y + -8y2 = 0

Begin completing the square.  Divide all terms by
-8 the coefficient of the squared term: 

Divide each side by '-8'.
-2.125 + -2y + y2 = 0

Move the constant term to the right:

Add '2.125' to each side of the equation.
-2.125 + -2y + 2.125 + y2 = 0 + 2.125

Reorder the terms:
-2.125 + 2.125 + -2y + y2 = 0 + 2.125

Combine like terms: -2.125 + 2.125 = 0.000
0.000 + -2y + y2 = 0 + 2.125
-2y + y2 = 0 + 2.125

Combine like terms: 0 + 2.125 = 2.125
-2y + y2 = 2.125

The y term is -2y.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2y + 1 + y2 = 2.125 + 1

Reorder the terms:
1 + -2y + y2 = 2.125 + 1

Combine like terms: 2.125 + 1 = 3.125
1 + -2y + y2 = 3.125

Factor a perfect square on the left side:
(y + -1)(y + -1) = 3.125

Calculate the square root of the right side: 1.767766953

Break this problem into two subproblems by setting 
(y + -1) equal to 1.767766953 and -1.767766953.

Subproblem 1

y + -1 = 1.767766953 Simplifying y + -1 = 1.767766953 Reorder the terms: -1 + y = 1.767766953 Solving -1 + y = 1.767766953 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + y = 1.767766953 + 1 Combine like terms: -1 + 1 = 0 0 + y = 1.767766953 + 1 y = 1.767766953 + 1 Combine like terms: 1.767766953 + 1 = 2.767766953 y = 2.767766953 Simplifying y = 2.767766953

Subproblem 2

y + -1 = -1.767766953 Simplifying y + -1 = -1.767766953 Reorder the terms: -1 + y = -1.767766953 Solving -1 + y = -1.767766953 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + y = -1.767766953 + 1 Combine like terms: -1 + 1 = 0 0 + y = -1.767766953 + 1 y = -1.767766953 + 1 Combine like terms: -1.767766953 + 1 = -0.767766953 y = -0.767766953 Simplifying y = -0.767766953

Solution

The solution to the problem is based on the solutions from the subproblems. y = {2.767766953, -0.767766953}

See similar equations:

| 7(3x+2)-3(5x+6)=-5x-7 | | 6m-5=7m+7-1m | | 8x+5(x+7)=9 | | 23x+7y=13 | | 24x-2(x+3)=x+8 | | 5x+55=225 | | 11(v+2)-3v=4(2v+3)-20 | | 2+15=-56 | | 2x-8-2x=2x+16-2x | | 8-5(9c-7)= | | X(x-5)(2x+1)=0 | | 6(x+13)-38=250 | | 8(x+4)=2(4x+1)+30 | | 13+Y=2X | | -4p+4=10+3p+8p | | 3x+15=4x+15 | | m+7m+6m-3= | | 3(x+4)=4(2x-2) | | 10sec^2(x)+5tan^2(x)-15=0 | | Y=x^2+16x+70 | | 3x+4=8x-2 | | 7+2s-5=8s+10-5s | | 5x-4=13x+28 | | =(.012x-.17)(.3x+.54) | | 8cos^2(x)+4cos(x)-4=0 | | .75(x-5)=-12 | | 6(x+1)=9x+24 | | 2x(x-6)-180=0 | | -3(-8)= | | -6x=x+4 | | 8(4x-5)=4(8x+7) | | 9x+2=-5+6x+19 |

Equations solver categories