8y^2-7y+7-14y^2-7y+2=

Simple and best practice solution for 8y^2-7y+7-14y^2-7y+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 8y^2-7y+7-14y^2-7y+2= equation:


Simplifying
8y2 + -7y + 7 + -14y2 + -7y + 2 = 0

Reorder the terms:
7 + 2 + -7y + -7y + 8y2 + -14y2 = 0

Combine like terms: 7 + 2 = 9
9 + -7y + -7y + 8y2 + -14y2 = 0

Combine like terms: -7y + -7y = -14y
9 + -14y + 8y2 + -14y2 = 0

Combine like terms: 8y2 + -14y2 = -6y2
9 + -14y + -6y2 = 0

Solving
9 + -14y + -6y2 = 0

Solving for variable 'y'.

Begin completing the square.  Divide all terms by
-6 the coefficient of the squared term: 

Divide each side by '-6'.
-1.5 + 2.333333333y + y2 = 0

Move the constant term to the right:

Add '1.5' to each side of the equation.
-1.5 + 2.333333333y + 1.5 + y2 = 0 + 1.5

Reorder the terms:
-1.5 + 1.5 + 2.333333333y + y2 = 0 + 1.5

Combine like terms: -1.5 + 1.5 = 0.0
0.0 + 2.333333333y + y2 = 0 + 1.5
2.333333333y + y2 = 0 + 1.5

Combine like terms: 0 + 1.5 = 1.5
2.333333333y + y2 = 1.5

The y term is 2.333333333y.  Take half its coefficient (1.166666667).
Square it (1.361111112) and add it to both sides.

Add '1.361111112' to each side of the equation.
2.333333333y + 1.361111112 + y2 = 1.5 + 1.361111112

Reorder the terms:
1.361111112 + 2.333333333y + y2 = 1.5 + 1.361111112

Combine like terms: 1.5 + 1.361111112 = 2.861111112
1.361111112 + 2.333333333y + y2 = 2.861111112

Factor a perfect square on the left side:
(y + 1.166666667)(y + 1.166666667) = 2.861111112

Calculate the square root of the right side: 1.691481928

Break this problem into two subproblems by setting 
(y + 1.166666667) equal to 1.691481928 and -1.691481928.

Subproblem 1

y + 1.166666667 = 1.691481928 Simplifying y + 1.166666667 = 1.691481928 Reorder the terms: 1.166666667 + y = 1.691481928 Solving 1.166666667 + y = 1.691481928 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-1.166666667' to each side of the equation. 1.166666667 + -1.166666667 + y = 1.691481928 + -1.166666667 Combine like terms: 1.166666667 + -1.166666667 = 0.000000000 0.000000000 + y = 1.691481928 + -1.166666667 y = 1.691481928 + -1.166666667 Combine like terms: 1.691481928 + -1.166666667 = 0.524815261 y = 0.524815261 Simplifying y = 0.524815261

Subproblem 2

y + 1.166666667 = -1.691481928 Simplifying y + 1.166666667 = -1.691481928 Reorder the terms: 1.166666667 + y = -1.691481928 Solving 1.166666667 + y = -1.691481928 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-1.166666667' to each side of the equation. 1.166666667 + -1.166666667 + y = -1.691481928 + -1.166666667 Combine like terms: 1.166666667 + -1.166666667 = 0.000000000 0.000000000 + y = -1.691481928 + -1.166666667 y = -1.691481928 + -1.166666667 Combine like terms: -1.691481928 + -1.166666667 = -2.858148595 y = -2.858148595 Simplifying y = -2.858148595

Solution

The solution to the problem is based on the solutions from the subproblems. y = {0.524815261, -2.858148595}

See similar equations:

| 2t+3t=9+2 | | (t+8)+(-2)=12 | | a(4a+12)= | | 86=6x+3x+5 | | 5x(3x-9)=0 | | (6x-4)-3=-12 | | 5x+0=80 | | 0.66666666666t-2=0.33333333333t+2 | | 40+8y=80 | | 5x^2=x-10 | | 80=0+y | | 0+8y=80 | | 18-2h=12-0.5h | | 9(x+2)=7(5x+7) | | (a^4b^3)^2/(-ab^3)^4 | | 0-16y=20 | | 100-0y=20 | | (2x-5)=123 | | 0-0y=20 | | 9x-3x-5=19 | | 1-2*-4=8 | | 1-2*-4y=8 | | 0-2(-5y)=8 | | 0-2*-5=8 | | 2(3x-6)=3(x+6) | | Y=x-(12-2x) | | x^2+3x+y^2-8y-12=0 | | 0-(-4y)*2=8 | | 5(x-9)=6(2x-4) | | 5x-1(3)=8(x-9) | | 18=3x-6a | | 300cos=X/15 |

Equations solver categories