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)
((5*x^2-4)^1)/4 = x // - x
((5*x^2-4)^1)/4-x = 0
(5*x^2-4)/4-x = 0
(5*x^2-4)/4+(4*(-x))/4 = 0
5*x^2+4*(-x)-4 = 0
5*x^2-4*x-4 = 0
5*x^2-4*x-4 = 0
5*x^2-4*x-4 = 0
DELTA = (-4)^2-(-4*4*5)
DELTA = 96
DELTA > 0
x = (96^(1/2)+4)/(2*5) or x = (4-96^(1/2))/(2*5)
x = (4*6^(1/2)+4)/10 or x = (4-4*6^(1/2))/10
(x-((4-4*6^(1/2))/10))*(x-((4*6^(1/2)+4)/10)) = 0
((x-((4-4*6^(1/2))/10))*(x-((4*6^(1/2)+4)/10)))/4 = 0
((x-((4-4*6^(1/2))/10))*(x-((4*6^(1/2)+4)/10)))/4 = 0 // * 4
(x-((4-4*6^(1/2))/10))*(x-((4*6^(1/2)+4)/10)) = 0
( x-((4*6^(1/2)+4)/10) )
x-((4*6^(1/2)+4)/10) = 0 // + (4*6^(1/2)+4)/10
x = (4*6^(1/2)+4)/10
( x-((4-4*6^(1/2))/10) )
x-((4-4*6^(1/2))/10) = 0 // + (4-4*6^(1/2))/10
x = (4-4*6^(1/2))/10
x in { (4*6^(1/2)+4)/10, (4-4*6^(1/2))/10 }
| -6.8(3y+5)-2.2(4y-6)= | | 7-x=5x+55 | | 2x/12=-15 | | -15y=9 | | 1inch=1.3miles | | 4x/12=-15 | | 4(3b-2)+(6-3)=4 | | -7x-2x-81=-108 | | -3y=(9/5) | | 4.905x^2+15x-90=0 | | 7y-5+2(2y+1)=-3(y+7) | | 100[0.9(z+10)]= | | -3x+4x+17=-34 | | 3(2a+4)+2(a+3)=10 | | 1/2(52) | | 4x/a=1/16 | | 1-5n=51 | | 3x(-4)=5(x+2) | | 3(2a+4)+(a+3)=10 | | c=0.08x+9.75 | | 6(x-3)+82=2x | | 35x+5y=-15 | | 3y=(9/5) | | 3/10x-3x | | 98xbc+214xbc= | | -9(7x+11)+4=(-725) | | 5/6÷1/3 | | 10x-3x+21=-28 | | 2(5x+7)+1=(-5) | | 7/8÷1/4 | | 9(-2x+5)+8=35 | | 8(-6x+9)+3=219 |