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)
R^2+(2/3)*r+1/9 = 0
R^2+2/3*r+1/9 = 0
x naleu017Cy do R
x in (-oo:+oo)
| 4x^2+7x+30=0 | | b-2+8b=18 | | 2(x+3)-(3x-1)=4(x-5) | | 3b-b+7+4b=43 | | -3(4t-3)+8t=7t-6 | | 15/1000 | | 12x^2-29xy+14y^2= | | 8=2y-1x | | (3x+24)/3=5x | | h+6=-2 | | .3125t=-4.5 | | 5r-22=3r+14 | | 1/3(m-6)+1/2(m-5)=5/3 | | 3/5+7/2c | | X-2.5=8 | | (x-3)7=6+21 | | 15-(4m-5)=-13 | | (x+8)+32=49 | | -9+x=2x-21 | | m=(m+1)+(2m-1) | | 2c^2-10c-168= | | [30-7x]=4 | | 9y=163 | | X+14-8x=7 | | 8x+4=120 | | 3X+24/7+X+14/4=11 | | 3x+1=p | | abs(5x)/x | | 3(5+2x)=9 | | 2y-1=3y+2 | | d-6r=-r | | x/175=45/100 |