2y^3-7y^2-3y=0

Simple and best practice solution for 2y^3-7y^2-3y=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 2y^3-7y^2-3y=0 equation:


Simplifying
2y3 + -7y2 + -3y = 0

Reorder the terms:
-3y + -7y2 + 2y3 = 0

Solving
-3y + -7y2 + 2y3 = 0

Solving for variable 'y'.

Factor out the Greatest Common Factor (GCF), 'y'.
y(-3 + -7y + 2y2) = 0

Subproblem 1

Set the factor 'y' equal to zero and attempt to solve: Simplifying y = 0 Solving y = 0 Move all terms containing y to the left, all other terms to the right. Simplifying y = 0

Subproblem 2

Set the factor '(-3 + -7y + 2y2)' equal to zero and attempt to solve: Simplifying -3 + -7y + 2y2 = 0 Solving -3 + -7y + 2y2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -1.5 + -3.5y + y2 = 0 Move the constant term to the right: Add '1.5' to each side of the equation. -1.5 + -3.5y + 1.5 + y2 = 0 + 1.5 Reorder the terms: -1.5 + 1.5 + -3.5y + y2 = 0 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + -3.5y + y2 = 0 + 1.5 -3.5y + y2 = 0 + 1.5 Combine like terms: 0 + 1.5 = 1.5 -3.5y + y2 = 1.5 The y term is -3.5y. Take half its coefficient (-1.75). Square it (3.0625) and add it to both sides. Add '3.0625' to each side of the equation. -3.5y + 3.0625 + y2 = 1.5 + 3.0625 Reorder the terms: 3.0625 + -3.5y + y2 = 1.5 + 3.0625 Combine like terms: 1.5 + 3.0625 = 4.5625 3.0625 + -3.5y + y2 = 4.5625 Factor a perfect square on the left side: (y + -1.75)(y + -1.75) = 4.5625 Calculate the square root of the right side: 2.136000936 Break this problem into two subproblems by setting (y + -1.75) equal to 2.136000936 and -2.136000936.

Subproblem 1

y + -1.75 = 2.136000936 Simplifying y + -1.75 = 2.136000936 Reorder the terms: -1.75 + y = 2.136000936 Solving -1.75 + y = 2.136000936 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + y = 2.136000936 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + y = 2.136000936 + 1.75 y = 2.136000936 + 1.75 Combine like terms: 2.136000936 + 1.75 = 3.886000936 y = 3.886000936 Simplifying y = 3.886000936

Subproblem 2

y + -1.75 = -2.136000936 Simplifying y + -1.75 = -2.136000936 Reorder the terms: -1.75 + y = -2.136000936 Solving -1.75 + y = -2.136000936 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + y = -2.136000936 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + y = -2.136000936 + 1.75 y = -2.136000936 + 1.75 Combine like terms: -2.136000936 + 1.75 = -0.386000936 y = -0.386000936 Simplifying y = -0.386000936

Solution

The solution to the problem is based on the solutions from the subproblems. y = {3.886000936, -0.386000936}

Solution

y = {0, 3.886000936, -0.386000936}

See similar equations:

| 5(y-2)=3y-22 | | 2r-4r+9+r= | | .28x+1.3y=15.1 | | 7+4(3c-1)= | | 3x+19y=5 | | 20x+8=14x-10 | | 2x-13=25 | | 7+5(2C-1)= | | 18x+24-12=6x+15 | | 4r-6r+9+r= | | 4-9p^2=0 | | (2x+5)(x^2-x-6)=0 | | 24x^2-5x=14 | | 6(5y-2)=24y | | 20x-15=6x+2 | | -7-3=5+X | | 3(X-2)-21=0 | | -3Z=51 | | v^2+2v=0 | | 7(Y-1)=5Y-15 | | 3.8z+5.5=3.3z+6 | | 3.8z+5.5=3.3x+6 | | 6r-23=-17+8r | | f(x+4)=(x+4*2)+8(x+14)+2 | | 5x-2(3x+6)=4-(2+x)+7 | | 9m-10=14+5m | | f(x+4)=(x+4)*2+8(x+14)+2 | | 2+0.70x+3.00=36.50 | | 2y-x=12 | | y+2x=10 | | 4+0.50x+5.00=29.00 | | 3c+2(c+2)=13-(2c-5) |

Equations solver categories