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/3)*X-C = 3/10 // - 3/10
(X/3)*X-C-(3/10) = 0
(X/3)*X-C-3/10 = 0
1/3*X^2-C-3/10 = 0
x naleu017Cy do R
x in (-oo:+oo)
| 44-x=24 | | 3n+3n=54 | | (3x+19)/5+(x+56)/7=17 | | (x/10)=-23 | | r=y(w+b) | | 3w^2-460w+12000=0 | | 8(x-4)+x=9(x-4)+4 | | (x-2)/7+2/7=-x/5 | | 2-5/x=3/x2 | | 2/3(3/4m-1/6)=m+1/3 | | 1/4x+1/5x+1/8x=23 | | 3x+x-40=0 | | 6x+(-7)=120 | | x-5.4=9.8 | | 200(1+0.1/2)^2 | | 6x-7=120 | | 3x+5=-35-4x | | 3x/10+7x/5=17 | | 200(1+1/10)2^2 | | 1.4(4-x)=1.2(2-x) | | 2x+13x=15 | | 210-2x=27+3x | | 5.8q-5.1-5.9q=-1.1q-2.7 | | 8m+6n-3m+10n= | | (x-4)(x-9)=0 | | 3x+7=4x-16 | | 7b+6b= | | 4x-5/8+x=4x+5/4+4 | | X+39(x+25)=180 | | AE=3600-0.8Y | | 5x-3(6-x)=54 | | x+(7/10)=(-1/5) |