f(x)=x^4+9x^2-400

Simple and best practice solution for f(x)=x^4+9x^2-400 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^2-400 equation: 


Simplifying
f(x) = x4 + 9x2 + -400

Multiply f * x
fx = x4 + 9x2 + -400

Reorder the terms:
fx = -400 + 9x2 + x4

Solving
fx = -400 + 9x2 + x4

Solving for variable 'f'.

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

Divide each side by 'x'.
f = -400x-1 + 9x + x3

Simplifying
f = -400x-1 + 9x + x3

See similar equations:

| 8=5x+4x-3 | | -5(5y-10)+3(2y+5)= | | 28-h/13=-27 | | -2/5x=4 | | 11/12x=1/3 | | 28-h/13=-26 | | 2n^3-4n^2+12=0 | | 0.05+0.13(10-x)=0.1(10) | | 7x/8=x/2+3 | | 15r^2+19r-56=0 | | (15x+45)(x+3)/15(x+3)(x-3) | | (x+9)=6+10 | | (x+9)=610 | | 7/12t=14/3 | | 4(9x-9)=-319 | | 2(x^2-5)=8 | | 4g+3(g-5)=-5(g-4)-g | | -152-8x=9x+17 | | 6+5n=4n-9 | | 3/15-10/15 | | 153-8x=9x+17 | | -7+23s=-25 | | 1/2(8x+14)-18=-2/3(12x-9) | | 5(x-3)=10(x+11) | | 3x+8y=-6 | | 48-x=-4x+7 | | n+12*.5=27 | | 4f-7=28 | | (v-1)/2=8 | | -6/8+4/8 | | 5(x+7)=5(x-12) | | 7x-5=7+17x |

Equations solver categories