If it's not what You are looking for type in the equation solver your own equation and let us solve it.
b in (-oo:+oo)
b^2 = 16/121 // - 16/121
b^2-(16/121) = 0
b^2-16/121 = 0
1*b^2 = 16/121 // : 1
b^2 = 16/121
b^2 = 16/121 // ^ 1/2
abs(b) = 4/11
b = 4/11 or b = -4/11
b in { 4/11, -4/11 }
| 5(3x+2)+2(2x+1)=5x+40 | | y-2/3=5/2 | | 3x-5+2(3+3x)=-380 | | 14.5625=(x-2.75)(x-2.75) | | x^12-38x^6+105=0 | | x^12-38x^3+105=0 | | 4(x+1)-3x=-9 | | W/7-3=10 | | (2-t)(2-t)=0 | | 10n-50/20 | | 34+4y-10=14y-11-3y | | 4(x+4)+3=6x+4(x+3) | | Logx(4)=-2 | | 4x+2-5x+3= | | -12n+8=-10n-6 | | 7.1=4.5x^4+18x^3+27x^2+18x+4.5 | | 2(x-3)=7x+4 | | 6=18+4y | | 1/8x80 | | 5b+11=5b-(1+4b) | | 9(t)-g(2)=3t^2-5t+6 | | -x^2+72x+79=0 | | y(2y+5)=0 | | 7x+32=2x+107 | | f(x)=2x^3-9x^2-24x+20 | | 0=2x^2-11x-14 | | 13/12x=1/6-7/15 | | cos^2(x)+6cosx+2=0 | | Ln^3+2ln^2-lnx-2=0 | | x^100-(1+i)x^50+i=0 | | -4x+-5x=8 | | x^2-4y-4x+8=0 |