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*x-7)/4) = 1/2 // - 1/2
x*((2*x-7)/4)-(1/2) = 0
x*((2*x-7)/4)-1/2 = 0
(x*(2*x-7))/4-1/2 = 0
(2*x*(2*x-7))/(2*4)+(-1*4)/(2*4) = 0
2*x*(2*x-7)-1*4 = 0
4*x^2-14*x-4 = 0
4*x^2-14*x-4 = 0
2*(2*x^2-7*x-2) = 0
2*x^2-7*x-2 = 0
DELTA = (-7)^2-(-2*2*4)
DELTA = 65
DELTA > 0
x = (65^(1/2)+7)/(2*2) or x = (7-65^(1/2))/(2*2)
x = (65^(1/2)+7)/4 or x = (7-65^(1/2))/4
2*(x-((7-65^(1/2))/4))*(x-((65^(1/2)+7)/4)) = 0
(2*(x-((7-65^(1/2))/4))*(x-((65^(1/2)+7)/4)))/(2*4) = 0
(2*(x-((7-65^(1/2))/4))*(x-((65^(1/2)+7)/4)))/(2*4) = 0 // * 2*4
2*(x-((7-65^(1/2))/4))*(x-((65^(1/2)+7)/4)) = 0
( x-((65^(1/2)+7)/4) )
x-((65^(1/2)+7)/4) = 0 // + (65^(1/2)+7)/4
x = (65^(1/2)+7)/4
( x-((7-65^(1/2))/4) )
x-((7-65^(1/2))/4) = 0 // + (7-65^(1/2))/4
x = (7-65^(1/2))/4
x in { (65^(1/2)+7)/4, (7-65^(1/2))/4 }
| -38+210= | | -18x+3y=33 | | 12(0)(-45)= | | -2(5)(-6)= | | -1(-32)= | | 0(-13)= | | 70-x=.12x | | g(x)=6x^2-x-1 | | -1(-17)= | | -x-(x-7)= | | 0=-2x^2+8x+9 | | 7(-7+8r)+8= | | 2(9a-9)+4a= | | -7(6n+6)-7n= | | -2+4(1-8x)= | | .55x=.22*.5 | | 2-7(-b-9)= | | 4(y-2)=5y-(y+1) | | 0=-2x^2+8x+5 | | 19n=14*15 | | 0=-2x^2+4x+9 | | 14*15=19n | | 0=-2x^2+4x+7 | | 3(1-x)-2(5-5x)=2x+3(1+5) | | 2x^2+13x-84= | | x*0,25=1500 | | 7x^2y+3xy^4= | | 3+4x-2x^2=0 | | x(x+1)=1332 | | f(x)=5x+1 | | 3t^2-6t-3=0 | | 2-x-6x^2=0 |