7y^3-18y^2+6y=0

Simple and best practice solution for 7y^3-18y^2+6y=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 7y^3-18y^2+6y=0 equation:


Simplifying
7y3 + -18y2 + 6y = 0

Reorder the terms:
6y + -18y2 + 7y3 = 0

Solving
6y + -18y2 + 7y3 = 0

Solving for variable 'y'.

Factor out the Greatest Common Factor (GCF), 'y'.
y(6 + -18y + 7y2) = 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 '(6 + -18y + 7y2)' equal to zero and attempt to solve: Simplifying 6 + -18y + 7y2 = 0 Solving 6 + -18y + 7y2 = 0 Begin completing the square. Divide all terms by 7 the coefficient of the squared term: Divide each side by '7'. 0.8571428571 + -2.571428571y + y2 = 0 Move the constant term to the right: Add '-0.8571428571' to each side of the equation. 0.8571428571 + -2.571428571y + -0.8571428571 + y2 = 0 + -0.8571428571 Reorder the terms: 0.8571428571 + -0.8571428571 + -2.571428571y + y2 = 0 + -0.8571428571 Combine like terms: 0.8571428571 + -0.8571428571 = 0.0000000000 0.0000000000 + -2.571428571y + y2 = 0 + -0.8571428571 -2.571428571y + y2 = 0 + -0.8571428571 Combine like terms: 0 + -0.8571428571 = -0.8571428571 -2.571428571y + y2 = -0.8571428571 The y term is -2.571428571y. Take half its coefficient (-1.285714286). Square it (1.653061225) and add it to both sides. Add '1.653061225' to each side of the equation. -2.571428571y + 1.653061225 + y2 = -0.8571428571 + 1.653061225 Reorder the terms: 1.653061225 + -2.571428571y + y2 = -0.8571428571 + 1.653061225 Combine like terms: -0.8571428571 + 1.653061225 = 0.7959183679 1.653061225 + -2.571428571y + y2 = 0.7959183679 Factor a perfect square on the left side: (y + -1.285714286)(y + -1.285714286) = 0.7959183679 Calculate the square root of the right side: 0.892142572 Break this problem into two subproblems by setting (y + -1.285714286) equal to 0.892142572 and -0.892142572.

Subproblem 1

y + -1.285714286 = 0.892142572 Simplifying y + -1.285714286 = 0.892142572 Reorder the terms: -1.285714286 + y = 0.892142572 Solving -1.285714286 + y = 0.892142572 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '1.285714286' to each side of the equation. -1.285714286 + 1.285714286 + y = 0.892142572 + 1.285714286 Combine like terms: -1.285714286 + 1.285714286 = 0.000000000 0.000000000 + y = 0.892142572 + 1.285714286 y = 0.892142572 + 1.285714286 Combine like terms: 0.892142572 + 1.285714286 = 2.177856858 y = 2.177856858 Simplifying y = 2.177856858

Subproblem 2

y + -1.285714286 = -0.892142572 Simplifying y + -1.285714286 = -0.892142572 Reorder the terms: -1.285714286 + y = -0.892142572 Solving -1.285714286 + y = -0.892142572 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '1.285714286' to each side of the equation. -1.285714286 + 1.285714286 + y = -0.892142572 + 1.285714286 Combine like terms: -1.285714286 + 1.285714286 = 0.000000000 0.000000000 + y = -0.892142572 + 1.285714286 y = -0.892142572 + 1.285714286 Combine like terms: -0.892142572 + 1.285714286 = 0.393571714 y = 0.393571714 Simplifying y = 0.393571714

Solution

The solution to the problem is based on the solutions from the subproblems. y = {2.177856858, 0.393571714}

Solution

y = {0, 2.177856858, 0.393571714}

See similar equations:

| 12n=2n-1 | | 287487500+287512500= | | (x-3)-2(x-3)=-5 | | 26-44=3(x-1)-6 | | -7x-3x+2=-8x-ray | | 3n^2+19n+16=0 | | 2x+25000=575000000 | | -46-(-1)=x/11 | | 4y=2y+78 | | 2x^2-31x+120=0 | | .67x+2=7 | | 6-2x=6x-10x+20x | | 4(x+6)-8= | | x-2(2x-3)=x+5 | | 8x-10*(3-x)=42 | | 4x^2-5=2(2x+1) | | 10.1=s*8 | | (p+1)(p-8)= | | (p+1)(p+8)= | | (3-2i)(3+2i)=0 | | 6x+-20=20 | | 9-4i=0 | | 2(3x+5)-2x+2= | | p^2-7p-8= | | 7x^2-11x-5=1 | | 13-4m=1-m | | 13-4m=a | | 0+4n=-12 | | 13-4n/a | | 9x+1-7x+5=7x+8-x+1 | | 8k+28=1k | | 3(-3/2)=p |

Equations solver categories