If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x in (-oo:+oo)
25-((5/4)*x^4) = 0
(-5/4)*x^4+25 = 0
-5/4*x^4 = -25 // : -5/4
x^4 = 20
x^4 = 20 // ^ 1/4
abs(x) = 20^(1/4)
x = 20^(1/4) or x = -20^(1/4)
x in { 20^(1/4), -20^(1/4) }
| 5y-5=-y-3 | | 5/9t=10/27 | | 5=1.8x+86 | | (-4/7)x=(-5/2) | | 6(v-5)+5v=36 | | 25x-5=23x+5 | | 4n+4=8n-8 | | y=1.8x+86 | | 134=-2x+2(-7x+11) | | -4x+0=9 | | P+9=3w | | 3+2x=2(-x+9)-27 | | 9(y)=23.4 | | x+1.9x=92.80 | | 33x^2-5x=0 | | Lnx+ln(x-4)=(x+6) | | x-12/5=7 | | 352.8104=3.14r^2 | | 5x-8x+2x+3x-15=0136 | | x^2+5x+6=24 | | -5(-5u+9)-5u=6(u-9)-9 | | 1/5(1x-10)=3 | | 15.00+1.50x=13.00+2.75x | | t=32y-16y^2 | | -30=8(u+5)+2u | | 17=x/4-3 | | 6y-42=5x-10 | | x=10-ytable | | -102=-5x+4(-x-3) | | 7+(4x/9)=x/2 | | 6x+2=x+6 | | 40-8b=-8(5b+3) |