(6y^2-3y-5)-(4y^2+5)-(8y+5)=

Simple and best practice solution for (6y^2-3y-5)-(4y^2+5)-(8y+5)= 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 (6y^2-3y-5)-(4y^2+5)-(8y+5)= equation:


Simplifying
(6y2 + -3y + -5) + -1(4y2 + 5) + -1(8y + 5) = 0

Reorder the terms:
(-5 + -3y + 6y2) + -1(4y2 + 5) + -1(8y + 5) = 0

Remove parenthesis around (-5 + -3y + 6y2)
-5 + -3y + 6y2 + -1(4y2 + 5) + -1(8y + 5) = 0

Reorder the terms:
-5 + -3y + 6y2 + -1(5 + 4y2) + -1(8y + 5) = 0
-5 + -3y + 6y2 + (5 * -1 + 4y2 * -1) + -1(8y + 5) = 0
-5 + -3y + 6y2 + (-5 + -4y2) + -1(8y + 5) = 0

Reorder the terms:
-5 + -3y + 6y2 + -5 + -4y2 + -1(5 + 8y) = 0
-5 + -3y + 6y2 + -5 + -4y2 + (5 * -1 + 8y * -1) = 0
-5 + -3y + 6y2 + -5 + -4y2 + (-5 + -8y) = 0

Reorder the terms:
-5 + -5 + -5 + -3y + -8y + 6y2 + -4y2 = 0

Combine like terms: -5 + -5 = -10
-10 + -5 + -3y + -8y + 6y2 + -4y2 = 0

Combine like terms: -10 + -5 = -15
-15 + -3y + -8y + 6y2 + -4y2 = 0

Combine like terms: -3y + -8y = -11y
-15 + -11y + 6y2 + -4y2 = 0

Combine like terms: 6y2 + -4y2 = 2y2
-15 + -11y + 2y2 = 0

Solving
-15 + -11y + 2y2 = 0

Solving for variable 'y'.

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

Divide each side by '2'.
-7.5 + -5.5y + y2 = 0

Move the constant term to the right:

Add '7.5' to each side of the equation.
-7.5 + -5.5y + 7.5 + y2 = 0 + 7.5

Reorder the terms:
-7.5 + 7.5 + -5.5y + y2 = 0 + 7.5

Combine like terms: -7.5 + 7.5 = 0.0
0.0 + -5.5y + y2 = 0 + 7.5
-5.5y + y2 = 0 + 7.5

Combine like terms: 0 + 7.5 = 7.5
-5.5y + y2 = 7.5

The y term is -5.5y.  Take half its coefficient (-2.75).
Square it (7.5625) and add it to both sides.

Add '7.5625' to each side of the equation.
-5.5y + 7.5625 + y2 = 7.5 + 7.5625

Reorder the terms:
7.5625 + -5.5y + y2 = 7.5 + 7.5625

Combine like terms: 7.5 + 7.5625 = 15.0625
7.5625 + -5.5y + y2 = 15.0625

Factor a perfect square on the left side:
(y + -2.75)(y + -2.75) = 15.0625

Calculate the square root of the right side: 3.881043674

Break this problem into two subproblems by setting 
(y + -2.75) equal to 3.881043674 and -3.881043674.

Subproblem 1

y + -2.75 = 3.881043674 Simplifying y + -2.75 = 3.881043674 Reorder the terms: -2.75 + y = 3.881043674 Solving -2.75 + y = 3.881043674 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '2.75' to each side of the equation. -2.75 + 2.75 + y = 3.881043674 + 2.75 Combine like terms: -2.75 + 2.75 = 0.00 0.00 + y = 3.881043674 + 2.75 y = 3.881043674 + 2.75 Combine like terms: 3.881043674 + 2.75 = 6.631043674 y = 6.631043674 Simplifying y = 6.631043674

Subproblem 2

y + -2.75 = -3.881043674 Simplifying y + -2.75 = -3.881043674 Reorder the terms: -2.75 + y = -3.881043674 Solving -2.75 + y = -3.881043674 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '2.75' to each side of the equation. -2.75 + 2.75 + y = -3.881043674 + 2.75 Combine like terms: -2.75 + 2.75 = 0.00 0.00 + y = -3.881043674 + 2.75 y = -3.881043674 + 2.75 Combine like terms: -3.881043674 + 2.75 = -1.131043674 y = -1.131043674 Simplifying y = -1.131043674

Solution

The solution to the problem is based on the solutions from the subproblems. y = {6.631043674, -1.131043674}

See similar equations:

| 8x-4(2x-3)-5x=4x+3(2x-3)+2 | | 2x+40=3x+30 | | 4x*x+2x-6=2(x*x-x) | | 2x-77= | | 4+16p-2=9p+72-7p | | x=7y/y-4 | | (4x-3y)+7(x+y)=58 | | 4 | | 2x+52= | | 5x^2-20/10x^2-40 | | 13-15x=5x+61 | | 3+log(16x)=31-3log(x) | | 20-15x=5x+96 | | Y=9x*-7x+2 | | -7y-1=6y-7 | | r-25=-48 | | 2(3x+6)=-44+32 | | 2=c+5-10 | | 2(3x+6)=44+32 | | -28+x=44 | | 12x^3-16x^2/2x^2 | | (4x+5)(2x+17)=180 | | m-19=-36 | | m+19=-36 | | m-9=-36 | | p+0.8=11.3 | | 36c^2-33cb-45b^2= | | 40a^2+57ac+20c^2= | | 2y+3x+4z= | | 4x+14=7x+29 | | 40r^2+57rw+20w^2= | | 7w-6=6(w+4)+4w |

Equations solver categories