2y^4-20y^3+42y^2=0

Simple and best practice solution for 2y^4-20y^3+42y^2=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^4-20y^3+42y^2=0 equation:


Simplifying
2y4 + -20y3 + 42y2 = 0

Reorder the terms:
42y2 + -20y3 + 2y4 = 0

Solving
42y2 + -20y3 + 2y4 = 0

Solving for variable 'y'.

Factor out the Greatest Common Factor (GCF), '2y2'.
2y2(21 + -10y + y2) = 0

Factor a trinomial.
2y2((3 + -1y)(7 + -1y)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor 'y2' equal to zero and attempt to solve: Simplifying y2 = 0 Solving y2 = 0 Move all terms containing y to the left, all other terms to the right. Simplifying y2 = 0 Take the square root of each side: y = {0}

Subproblem 2

Set the factor '(3 + -1y)' equal to zero and attempt to solve: Simplifying 3 + -1y = 0 Solving 3 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1y = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1y = 0 + -3 -1y = 0 + -3 Combine like terms: 0 + -3 = -3 -1y = -3 Divide each side by '-1'. y = 3 Simplifying y = 3

Subproblem 3

Set the factor '(7 + -1y)' equal to zero and attempt to solve: Simplifying 7 + -1y = 0 Solving 7 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1y = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1y = 0 + -7 -1y = 0 + -7 Combine like terms: 0 + -7 = -7 -1y = -7 Divide each side by '-1'. y = 7 Simplifying y = 7

Solution

y = {0, 3, 7}

See similar equations:

| 2x-5=2+x | | 32x+1=20x+4 | | 20.7=34.5(n) | | 10+8x=3+x | | 2z-6=5-3z | | 16.56=34.5(n) | | M(m+2n)-n(m+2n)= | | -16-4v=-4(6v+4) | | 55.02=65.5(n) | | -3n-30=4(-7n+5) | | -3-30=4(-7n+5) | | 13x+7+7x+49=180 | | 18x^2+51x+36=0 | | 1-7(-v-6)=37+5v | | 45=60(n) | | 35-3n=2(-5n-7) | | -(n+3)=39-8n | | D(X)=X+4X+1 | | 12=75(n) | | x^2-22x+30=0 | | 13=3+n+6 | | 4n+3+3n=10 | | 20+10n=10+13n | | 8h+6=78 | | -11=3+3p+4 | | 2u+9=31 | | 117=58.5(n) | | 112t-16t^2= | | 2x+34+4y=2*4x | | 2(x-3)+9=3(x+1) | | 5x+3+5=-7 | | 2x+16=5x+13 |

Equations solver categories