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)
4*x^2-256-64 = 25-(((x-8)^2)/4) // - 25-(((x-8)^2)/4)
((x-8)^2)/4+4*x^2-256-64-25 = 0
((x-8)^2)/4+(4*4*x^2)/4+(-256*4)/4+(-64*4)/4+(-25*4)/4 = 0
(x-8)^2+4*4*x^2-256*4-64*4-25*4 = 0
17*x^2-16*x-1024-256-100+64 = 0
17*x^2-16*x-960-256-100 = 0
17*x^2-16*x-1216-100 = 0
17*x^2-16*x-1316 = 0
17*x^2-16*x-1316 = 0
17*x^2-16*x-1316 = 0
DELTA = (-16)^2-(-1316*4*17)
DELTA = 89744
DELTA > 0
x = (89744^(1/2)+16)/(2*17) or x = (16-89744^(1/2))/(2*17)
x = (4*5609^(1/2)+16)/34 or x = (16-4*5609^(1/2))/34
(x-((16-4*5609^(1/2))/34))*(x-((4*5609^(1/2)+16)/34)) = 0
((x-((16-4*5609^(1/2))/34))*(x-((4*5609^(1/2)+16)/34)))/4 = 0
((x-((16-4*5609^(1/2))/34))*(x-((4*5609^(1/2)+16)/34)))/4 = 0 // * 4
(x-((16-4*5609^(1/2))/34))*(x-((4*5609^(1/2)+16)/34)) = 0
( x-((16-4*5609^(1/2))/34) )
x-((16-4*5609^(1/2))/34) = 0 // + (16-4*5609^(1/2))/34
x = (16-4*5609^(1/2))/34
( x-((4*5609^(1/2)+16)/34) )
x-((4*5609^(1/2)+16)/34) = 0 // + (4*5609^(1/2)+16)/34
x = (4*5609^(1/2)+16)/34
x in { (16-4*5609^(1/2))/34, (4*5609^(1/2)+16)/34 }
| 5x^3-35x/15x^2 | | 0=6x^3-53x^2-11x+2 | | m=(y+xm)(1+y) | | 4+3s-9s=-22 | | 2x+8ym=0 | | 172x+5y=2 | | 5x+y-2z=21 | | 2x-2/15=-1 | | 16x^3-72x^2+81x-27=0 | | x-8=106 | | -x(2x+1)=8-(3x+3) | | 300-3x^2/4 | | 6x=8x-5 | | 162/13.5 | | (x^2-130x-8000)=0 | | 8x/7-3/7=6 | | 3-8(x+1)=2 | | M=-1/3b=4 | | f(x)=2+3sinx | | 2b+2-5b=4b+2 | | 5x+3=6z-2 | | 2h+2t+1t=10 | | 2(3a+5)=2y | | Y=20x^4+49x^3-2x^2-40x | | 1-(x+6)=9 | | 20x^4+49x^3-2x^2-40x=0 | | 8x^3-z= | | 9=3/5x | | 1.5x=100000+.5x | | x+22+4x=-19-4x-22 | | 2(x+7)-3(x+1)=24 | | 4x^3+3x=9x+(-8)x^2 |