If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( a )
a^2 = 0
a^2 = 0
a^2 = 0
1*a^2 = 0 // : 1
a^2 = 0
a = 0
a in (-oo:0) U (0:+oo)
4*a-(32/(a^2)) = 0
4*a-32*a^-2 = 0
4*a^1-32*a^-2 = 0
(4*a^3-32*a^0)/(a^2) = 0 // * a^4
a^2*(4*a^3-32*a^0) = 0
a^2
4*a^3-32 = 0
{ 1, -1, 2, -2, 4, -4, 8, -8, 16, -16, 32, -32 }
1
a = 1
4*a^3-32 = -28
1
-1
a = -1
4*a^3-32 = -36
-1
2
a = 2
4*a^3-32 = 0
2
a-2
4*a^2+8*a+16
4*a^3-32
a-2
8*a^2-4*a^3
8*a^2-32
16*a-8*a^2
16*a-32
32-16*a
0
4*a^2+8*a+16 = 0
DELTA = 8^2-(4*4*16)
DELTA = -192
DELTA < 0
a in { 2}
a = 2
| 6-11=-2x+5 | | 1+1x*0+1= | | 12e+4d= | | 10*(x*x)=9x | | 12*(100-5)= | | .125y+5=-18 | | 3x+621=1080 | | 7*25/8= | | y=6-3(y-6) | | y=8/7(39.2)-8 | | 2t(2t+4)=5t+6 | | 3-7x=(1/7) | | 2x+(-x+1)=8 | | y=8/7(32.9)-8 | | 252=11n+10 | | (x*x)-4x=0 | | 9(3c+1)=27(3c-1) | | 8/7(6)-4y=-24 | | 3x^4-3x^2+27=0 | | x*1.22=160 | | x^5+x-100=0 | | -5.5x+0.3= | | x*1.22=150 | | 8x-9x=1500/10 | | 15-t+81=-13 | | x*.82=100 | | 6x-4(-8)=-24 | | b^2-2b-80=0 | | 5/6x=5-14 | | b+[-9]=54 | | x=-3y+-13 | | 0.10+0.25(100-x)=19.75 |