4x^4-38x^3-42x^2=0

Simple and best practice solution for 4x^4-38x^3-42x^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 4x^4-38x^3-42x^2=0 equation:


Simplifying
4x4 + -38x3 + -42x2 = 0

Reorder the terms:
-42x2 + -38x3 + 4x4 = 0

Solving
-42x2 + -38x3 + 4x4 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2x2'.
2x2(-21 + -19x + 2x2) = 0

Factor a trinomial.
2x2((-1 + -1x)(21 + -2x)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor 'x2' equal to zero and attempt to solve: Simplifying x2 = 0 Solving x2 = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x2 = 0 Take the square root of each side: x = {0}

Subproblem 2

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

Subproblem 3

Set the factor '(21 + -2x)' equal to zero and attempt to solve: Simplifying 21 + -2x = 0 Solving 21 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-21' to each side of the equation. 21 + -21 + -2x = 0 + -21 Combine like terms: 21 + -21 = 0 0 + -2x = 0 + -21 -2x = 0 + -21 Combine like terms: 0 + -21 = -21 -2x = -21 Divide each side by '-2'. x = 10.5 Simplifying x = 10.5

Solution

x = {0, -1, 10.5}

See similar equations:

| 187=19+7[13-x] | | 36x^2+78x+42=0 | | v^2+12v+27=-8 | | 1x+8y=56 | | 20x-3=14x+5 | | 3(4+x)=1/2x-8 | | 7/(k-2)=5/8 | | 25x^2+15x-40=0 | | y=18-5(-4) | | 8/3k-1/3+1=6 | | x-18=60 | | 15x+10=-5x+70 | | -6-3p=18 | | 2k+7=2(k+14) | | 14.27+.07h=14.77-.11h | | 3(2y-7)= | | 3n-72=n-16 | | -7(x+4)+13(x-6)= | | (x+1)(x+5)=x^2+4x-2 | | -27x+69+30y=0 | | -9x-127=35-3x | | 25=5y+5x | | 5x-5=-70 | | 4x/5-x=x/15-8/5 | | 24/25=36/x | | -4(2b-5)=-30 | | 36y^2=81 | | 1/7+1/2=13/14 | | 2(h+12)=10 | | 2+4i/5+2i | | -1=6+n/5 | | 2x+3-6x=2+15 |

Equations solver categories