4/X21

Simple and best practice solution for 4/X21 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 4/X21 equation: 


D( X )

X^2 = 0

X^2 = 0

X^2 = 0

1*X^2 = 0 // : 1

X^2 = 0

X = 0

X in (-oo:0) U (0:+oo)

4/(X^2) < 1 // - 1

4/(X^2)-1 < 0

4*X^-2 < 1

4*X^-2 < 1 // : 4

X^-2 < 1/4

1/(X^2) < 1/4

X <> 0

1/(X^2) < 1/4 // * X^4

(X^4)/(X^2) < 1/4*X^4

X^2 < 1/4*X^4

X^2-1/4*X^4 < 0

X^2*(1-1/4*X^2) < 0

X^2*(1-1/4*X^2) < 0 // : X^2

1-1/4*X^2 < 0

1 < 1/4*X^2 // : 1/4

1/1/4 < X^2

X^2 > 1/1/4 // ^ 1/2

abs(X) > 2

X in (-oo:-2) U (2:+oo)

X in (-oo:-2) U (2:+oo)

(-oo:-2) U (2:+oo)

See similar equations:

| 3/4[x-8]=15 | | 4a(-3a)=17 | | 4/X20 | | 49=2+15 | | X+4x=-12 | | y-6=4(x-11) | | 2r+3y=8 | | 3(6)+8= | | 8(x+10)=4x-12 | | -78=-33-5x | | 21-2.1= | | 4y-7=90 | | 3c-5=35 | | x^2+16=57 | | 10a-3=12a-11 | | 0.45x=3.6 | | 9=t/12==-3 | | 0.45x=0.36 | | v-5.4=6.3 | | 63x+441=6 | | 9+5x=18+x | | -12+2y=-8y+28 | | H+45=270 | | 36g-90=14g^2+26g-220 | | y-2=2(x+1) | | (5y+9)=17+3y | | 5.5z=33 | | v/2=56 | | 20=15 | | 5x^2-16x-97=0 | | 5z+20=7z-4 | | 1/3(2x-17)=19 |

Equations solver categories