If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
2/x < 7 // - 7
2/x-7 < 0
2*x^-1 < 7
2*x^-1 < 7 // : 2
x^-1 < 7/2
1/(x^1) < 7/2
x <> 0
1/(x^1) < 7/2 // * x^2
(x^2)/(x^1) < 7/2*x^2
x^1 < 7/2*x^2
x-7/2*x^2 < 0
x^1*(1-7/2*x) < 0
x < 0
-(abs(x))^1*(7/2*(abs(x))^1+1) < 0 // : -(abs(x))^1
7/2*(abs(x))^1+1 > 0
7/2*(abs(x))^1 > -1 // : 7/2
(abs(x))^1 > -1/7/2
(abs(x))^1 > -2/7 // ^ 1/1
abs(x) > (-2/7)^(1/1)
abs(x) > -2/7
x in (-oo:0)
x < 0
x > 0
x^1*(1-(7/2*x^1)) < 0 // : x^1
1-(7/2*x^1) < 0
1 < 7/2*x^1 // : 7/2
1/7/2 < x^1 // ^ 1/1
(1/7/2)^(1/1) < x
x in (2/7:+oo)
x > 0
x in (-oo:0) U (2/7:+oo)
x in (-oo:0) U (2/7:+oo)
(-oo:0) U (2/7:+oo)
| sin23°=x/15 | | 2/7=8/5/x | | 6b-6b^2=8 | | x+(x*3)=60 | | 6m-7=2m+5 | | 2/8=u/12 | | 2/5/8=x/15 | | x^2-sqrt(2)x-1=0 | | (x-5)(x+5)=x^2-25 | | 1+6=19 | | 8x+17+4=x | | 0.5x=-0.5x | | W^4+36-13w^2=0 | | 5y-3(y-4)=8y+30 | | 5x+y+8=12 | | 3y=1/2 | | w-7=6 | | x/.32=.5/.8 | | 3x+18y+4z=10 | | z/9.3=2.3/0.3 | | -x-7y=-1 | | 7y-2(y+2)=9y+20 | | 9/x=5/5/3 | | 50+2x=14 | | 5x^3+60x^2+180x=0 | | f(x)=x^2+7x-44x+11 | | 2.5/1.4=x/7 | | .75c+(.40)400-c= | | 9/x=5/1/23 | | http://media.apexlearning.com/Images/200907/10/c5f109c0-b9fa-475f-8abe-6bc8b7bb9eb0.gif | | 2/7=18/x | | Y-5=(-4)(x-3) |
