If it's not what You are looking for type in the equation solver your own equation and let us solve it.
z in (-oo:+oo)
((39*z^2)/13)*z^5 = 0
3*z^7 = 0 // : 3
z^7 = 0
z = 0
z = 0
| 4(-4x-4)=-112 | | 4(2x+5)=0x+4 | | 3(-2x+6)=-90 | | 25-x=3.45 | | 8+82.99p=18+80.99p | | x^2=-5/9x | | 30-x=16 | | 1/6*6x | | -7(2x+1)=-63 | | 10x(5y+3)+5=965 | | 2/5x–1/3x=2 | | 2/5x–1/3x=3 | | 6x^2+4x+7=3x^2-8 | | (z-5)(z-1)= | | (2z-7)(5z+4)= | | 12=3.75(x-6)+35 | | (3x-4)(3+4x)= | | 4(x-9)-12=-8(x+6)+12 | | 31-4+2x=30 | | (31-4)+2x=30 | | 4x+14y=2x | | 2*100e^10x=0 | | 2x^2-2x=2x | | (6/4)/(19/4) | | 20/4-1/4 | | (1/4)-5 | | 5/7/2/5 | | 6x+5(4x-3)= | | 6x+(4x+1)=2x+9 | | 10=-16x^2+27x+6 | | 4(8/9x) | | 4÷(8/9x) |