f(x)=-x^4+9x^2

Simple and best practice solution for f(x)=-x^4+9x^2 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 f(x)=-x^4+9x^2 equation: 


Simplifying
f(x) = -1x4 + 9x2

Multiply f * x
fx = -1x4 + 9x2

Reorder the terms:
fx = 9x2 + -1x4

Solving
fx = 9x2 + -1x4

Solving for variable 'f'.

Move all terms containing f to the left, all other terms to the right.

Divide each side by 'x'.
f = 9x + -1x3

Simplifying
f = 9x + -1x3

See similar equations:

| -11+7+(-2)= | | 9x^3-64x=0 | | X/3-x/4=48 | | (2m+3b)*10=1 | | y^3-2y^2-y^1+y=0 | | y^2-2y^1+3y=0 | | 11y^2-5y^1+y=0 | | 2y^2+15y^1+10y=0 | | 6(x-4)=48 | | -x=-2/9 | | 10.0=-11.1-x | | 4(2x+8)=48 | | -2.6+6.3+(-5.2)= | | 5(x+9y)-2(2x+4y)= | | -2.7+7.3+(-5.1)= | | r=26.7(8)+205 | | -3.8+6.4+(-2.1)= | | 4.8+9.8+(-6.3)= | | 62=47+2.4h | | w=47+2.4(3) | | 6x-6y=-3.6 | | 40000=-7300t+156000 | | an=2n^1 | | v=-7300(6)+156000 | | v-156000=-7300t | | 7x-10x=21 | | v+(v-30.3)+(v+27.2)=192.8 | | 8x^2y+4xyz+4x^2yz^2= | | m=(83000-156000)/(10-0) | | x+2x=138 | | 4/3x=(4/3)(18) | | 3/3x+4/3x=42 |

Equations solver categories