30x^4-42x^2=0

Simple and best practice solution for 30x^4-42x^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 30x^4-42x^2=0 equation:


Simplifying
30x4 + -42x2 = 0

Reorder the terms:
-42x2 + 30x4 = 0

Solving
-42x2 + 30x4 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '6x2'.
6x2(-7 + 5x2) = 0

Ignore the factor 6.

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 '(-7 + 5x2)' equal to zero and attempt to solve: Simplifying -7 + 5x2 = 0 Solving -7 + 5x2 = 0 Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + 5x2 = 0 + 7 Combine like terms: -7 + 7 = 0 0 + 5x2 = 0 + 7 5x2 = 0 + 7 Combine like terms: 0 + 7 = 7 5x2 = 7 Divide each side by '5'. x2 = 1.4 Simplifying x2 = 1.4 Take the square root of each side: x = {-1.183215957, 1.183215957}

Solution

x = {0, -1.183215957, 1.183215957}

See similar equations:

| N-3=n-8-n | | -2n+4(2-n)=2(2n+34) | | 8-x/15=12 | | 6(x+5)=(6x+30) | | x^2+y^2+24x-6y+72=0 | | 2p-5s+4p-9s= | | 3y+4=-9+2y | | 6r+5=(r+2)-2r | | 41t-53=6t-13 | | X-4+x=1+1-5x+x | | t^2-2t+2=0 | | 9p-8r-7p-7r= | | 7z+12z= | | -1(x+5)=-1(5-x) | | 8/8-2=-3 | | 4x/5=-8 | | 3(w-1)+4=1-2w | | X+1/3x=92 | | 5c+c=282 | | 3(z-2)+6=5( z+4) | | 4x=-18 | | -9p-5=-8-8p | | 1r-7+6r+3= | | 2(x+1)-8=3x-22 | | -15=0.2k | | 5+10m-1=9m+36-7m | | 3+3x+3-x=-5+4x+6-3x | | 5x+138=2x+108 | | 38-a/11 | | 3+3x+3-x=5+4x+6-3x | | 5y+3=10-10y | | y=x/2 |

Equations solver categories