If it's not what You are looking for type in the equation solver your own equation and let us solve it.
s in (-oo:+oo)
s^2-(9/25) = 0
s^2-9/25 = 0
1*s^2 = 9/25 // : 1
s^2 = 9/25
s^2 = 9/25 // ^ 1/2
abs(s) = 3/5
s = 3/5 or s = -3/5
s in { 3/5, -3/5 }
| -5(x+2)-16=11+3 | | 3x=40-5x | | 1/2(x+1.5x)=147 | | 6h^2+8h-12=6y | | 12(x+5)=15(x+1) | | 1.5x=147-x | | 0.35X+500=2.50x | | 3n^2-7+2=0 | | 4/5-2/7 | | 4/5/2/7 | | 3n-7+2=0 | | 2(3x+1)-4x=-32 | | 8x-7=3+2 | | 4x^3-17x^2-15x=5x | | x/x+4=x-2/9 | | x+4=72 | | x^2+22y=-y^2-12x-153 | | 6x+10-2x=42 | | r/3-16+2 | | -8x^3+27=0 | | -4(2x-5)= | | 18+-y=8+y | | 18x^2=48x-32 | | cosx=2 | | f(x)=3x^2-12x+8 | | -9-6=4x+8-3x | | -20x=-5x+50 | | 2x^6-9x^4-18x^2=0 | | 5x^2+20x=19 | | -2x+5y=-4 | | 3+1/2y=3/5+1/10y | | 1/4e=2 |