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)
(x^2)/4-((5*x)/2)+6 = 0
(x^2)/4+(-5/2)*x+6 = 0
1/4*x^2-5/2*x+6 = 0
DELTA = (-5/2)^2-(1/4*4*6)
DELTA = 1/4
DELTA > 0
x = ((1/4)^(1/2)+5/2)/(1/4*2) or x = (5/2-(1/4)^(1/2))/(1/4*2)
x = 6 or x = 4
x in { 4, 6 }
| 20xy-9-4x= | | 1/2k=3.2 | | 14x-21x^2=0 | | -7p-2(4-6p)=3(p-2)-8 | | 7+N-14=3N | | -1/4(12+8y)=1/2(y-1) | | .12*12= | | 8s/4=5s/7 | | 11/d=100/11 | | 4x^2+32x+5=0 | | 37-5x=17 | | (1/2*n)-(1*5/12)=(2/3*n)-(2*1/6) | | 3/5*1/4 | | 11/x=11/100 | | 17y=41 | | 1/3(c-4)=12 | | (x/3)+1=(x/5)+3 | | r-4=-31.2 | | k-1209=12345 | | 9/2m-8=-5.5+4m | | 4/x+2/x+1-5/x-5 | | 2.5y=2 | | 7x^2+7y^2+56x+28y-35=0 | | 15y=3 | | 7/x=84/12 | | 2/5+3/4 | | 5(-2)+2y=-8 | | H^2+2h+1=0 | | 4/x+2/x+1 | | 8.7=y+-4.6 | | 2(h-3)+4h+7+31=180 | | -(x-4)=2x^2-9x-4 |