If it's not what You are looking for type in the equation solver your own equation and let us solve it.
a in (-oo:+oo)
a^2*((a^4)/2)-(4*a^4) = 0
a^2*((a^4)/2)-4*a^4 = 0
1/2*a^6-4*a^4 = 0
a^4*(1/2*a^2-4) = 0
1/2*a^2 = 4 // : 1/2
a^2 = 8
a^2 = 8 // ^ 1/2
abs(a) = 2*2^(1/2)
a = 2*2^(1/2) or a = -(2*2^(1/2))
a^4 = 0
1*a^4 = 0 // : 1
a^4 = 0
a = 0
a in { 2*2^(1/2), -(2*2^(1/2)), 0 }
| 6x+7y=60 | | 5(-6x-7)-3=12-5x | | 5(x+3)=27 | | 4(r-5)-5=-5+8r | | 2z+36=5 | | 7+x=22 | | 2z+12=5 | | x^3+11x^2+35x+44=0 | | 9-k=5k-(7k-5) | | 2x1/2=6 | | 7x+0.5=22 | | 15/x+(9x-7)/(x+2)=9 | | 2(3-b)=b-9 | | 7(4+4m)+8=5m+36 | | 7/15-(-1/3) | | 7x+5-3x=4x+3-2x | | 11d+6=4d+20 | | 9(x-1)=-6.3 | | s=16t^2+144 | | -3f+10=2f-5 | | 9(a+7)=126 | | 52.6=9c-5 | | 30=2t+14 | | 4+3X=2X+1 | | 5e-7=-3 | | 13/3=8/y | | 4n+13=13 | | 6f+4-3f+6= | | 32/5p=1/2 | | 5a+20=70 | | 7/17=x/4 | | 9x-2y=-9 |