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)
(10*x^2-(4*x))/2 = 115 // - 115
(10*x^2-(4*x))/2-115 = 0
(10*x^2-4*x)/2-115 = 0
(10*x^2-4*x)/2+(-115*2)/2 = 0
10*x^2-4*x-115*2 = 0
10*x^2-4*x-230 = 0
10*x^2-4*x-230 = 0
2*(5*x^2-2*x-115) = 0
5*x^2-2*x-115 = 0
DELTA = (-2)^2-(-115*4*5)
DELTA = 2304
DELTA > 0
x = (2304^(1/2)+2)/(2*5) or x = (2-2304^(1/2))/(2*5)
x = 5 or x = -23/5
2*(x+23/5)*(x-5) = 0
(2*(x+23/5)*(x-5))/2 = 0
(2*(x+23/5)*(x-5))/2 = 0 // * 2
2*(x+23/5)*(x-5) = 0
( 2 )
2 = 0
x belongs to the empty set
( x+23/5 )
x+23/5 = 0 // - 23/5
x = -23/5
( x-5 )
x-5 = 0 // + 5
x = 5
x in { -23/5, 5 }
| (-3)+11x= | | 19=3v-11 | | 3t^2/2-1/4 | | g(7)=-3x-1 | | 5u+9=2u | | 18p+p=11-3 | | 7(8+2b)+3b=-7(-4b-8) | | 6x+12y=216 | | -n-6(4n-7)= | | 11/12-5/9 | | 3x+4+2x=4+3x+4 | | 8(x-2)*2x=20 | | -4-7y=18 | | 3x+4+2x=4+3x*4 | | 6[6-(-4x-1)]=72x+54 | | 29x-40=6 | | 12y-8y=25 | | -3x^2-10x+4=0 | | 4+2a+3a= | | 10y+8+6y=16y+8 | | x+1*x=3 | | 3/2x-2/3=-13/6 | | 11t^2+225=150 | | 63=5y+8 | | 8x-8=4x+40 | | x-10+8x+9= | | 1(x-3)=9 | | -5+n+8-3=-3n-2n | | 3(x-40)=400-x | | -(7x+5)+8= | | 2x^2+19x-6.3=0 | | 1+8+x=4+5 |