If it's not what You are looking for type in the equation solver your own equation and let us solve it.
(3x-1)(3x+1)-(1-x)(1+x)+3(1-2x)(1+2x)=199
We move all terms to the left:
(3x-1)(3x+1)-(1-x)(1+x)+3(1-2x)(1+2x)-(199)=0
We add all the numbers together, and all the variables
(3x-1)(3x+1)-(-1x+1)(x+1)+3(-2x+1)(2x+1)-199=0
We use the square of the difference formula
9x^2-(-1x+1)(x+1)+3(-2x+1)(2x+1)-1-199=0
We multiply parentheses ..
9x^2-(-1x^2-1x+x+1)+3(-2x+1)(2x+1)-1-199=0
We add all the numbers together, and all the variables
9x^2-(-1x^2-1x+x+1)+3(-2x+1)(2x+1)-200=0
We get rid of parentheses
9x^2+1x^2+1x-x+3(-2x+1)(2x+1)-1-200=0
We multiply parentheses ..
9x^2+1x^2+3(-4x^2-2x+2x+1)+1x-x-1-200=0
We add all the numbers together, and all the variables
10x^2+3(-4x^2-2x+2x+1)-201=0
We multiply parentheses
10x^2-12x^2-6x+6x+3-201=0
We add all the numbers together, and all the variables
-2x^2-198=0
a = -2; b = 0; c = -198;
Δ = b2-4ac
Δ = 02-4·(-2)·(-198)
Δ = -1584
Delta is less than zero, so there is no solution for the equation
| 34z=19.8 | | x-12*45+800=3500 | | 7n+2n-3=69 | | 3x+10+4x-50=180 | | x-380*7+1020=1860 | | x-380x7+1020=1860 | | 3x+x=5+4 | | 9x+5=3x+6=4+x | | 7p/10+9=1.5 | | (m+3)(2m+1)(m-2)=0 | | 10^2+2x=9 | | x+2=2x+1=18 | | x=8(6)+3 | | 567=7656=657x865 | | 27+5/16=y | | x+1.8=2.6 | | 8.4x=33.6 | | 2x-13-18-2x=17 | | X+4(x-3)=141 | | 40x+40(x+10)=10400 | | -11=-22+x/5 | | -42-11x=-42 | | -42-11y=-42 | | -6+3c=6 | | 32x^2+6x^2=x^-x | | a+4=2a+12 | | -x-11=-12 | | -x/8-11=-12 | | 1/2x=1/3x+1 | | 8x-10=7x-12 | | 4(n-3)=2n-8 | | (25-2x)(20-2x)x=462 |