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^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)
(9/8)*x+7/8 = 2/(x^2) // - 2/(x^2)
(9/8)*x-(2/(x^2))+7/8 = 0
(9/8)*x-2*x^-2+7/8 = 0
9/8*x^1-2*x^-2+7/8*x^0 = 0
(9/8*x^3+7/8*x^2-2*x^0)/(x^2) = 0 // * x^4
x^2*(9/8*x^3+7/8*x^2-2*x^0) = 0
x^2
(9/8)*x^3+(7/8)*x^2-2 = 0
(9/8)*x^3+(7/8)*x^2-2 = 0 // * 0
{ 1, -1, 2, -2, 4, -4, 8, -8, 16, -16 }
1
x = 1
9*x^3+7*x^2-16 = 0
1
x-1
9*x^2+16*x+16
9*x^3+7*x^2-16
x-1
9*x^2-9*x^3
16*x^2-16
16*x-16*x^2
16*x-16
16-16*x
0
9*x^2+16*x+16 = 0
DELTA = 16^2-(4*9*16)
DELTA = -320
DELTA < 0
x in { 1}
x = 1
| (9x+8y)(4y+6x)= | | 2x+4(.5)=8 | | 15x^4+3x^2-18=0 | | f(x)=3x^2-5x+8 | | 2(.5)+4y=8 | | [9-6(x-4y)]+9(4x+y)= | | 5(9)+9y=90 | | (-2y^2-4y+4)-(6y^2-4y+5)= | | 5x+9(0)=90 | | 5(0)+9y=90 | | 2m+10=12 | | 1/3(2X-5)-3 | | 1/2(5y-2)+1/4(6y+9) | | 3+xi=(x+1)2i | | -12=3x+6 | | -6x-12y=2 | | 480=(x+2)+x+6 | | 39=5/9(f-32) | | L=2(45.5+5) | | X+[x+1]+[x+2]+[x+3]=18 | | 9i(2-2i)= | | 9i(2-2i)= | | y=3x+6-12 | | 190=2(x+5)+(x-2)+(x) | | 12/25=x/50 | | b+9=-18 | | x/2=14/35 | | c+13=-17 | | (-5+4i)(5+I)= | | 2/15=x/50 | | y+13=-19 | | y-3+y-4=7 |