(x-y)(x+y)
(2x-1)(2x+1)
(8c+9d)(8c-9d)
(1-3k)(1+3k)
(b^2-1=(b-1)(b+1)
48m^2-n^2=(4m√3-n)(4m√3+n)
x^6-1.44=(x³-12)(x³+12)
1,21p²-a^6=(1,1p-a³)(1,1p+a³)
0.25a^2-1=(0,5a-1)(0,5a+1)
1.69y^14-1.21=(1,3y^7-1,1)(1,3y^7+1,1)
121m^8n^8-9=(11m^4n^4-3)(11m^4n^4+3)
(x-y)(x+y)=x²-y²
(2x-1)(2x+1)=4x²-1
(8c+9d)(8c-9d)=64c²-81d²
(1-3k)(1+3k)=1-9k²
(a^3)(a^2)(a^2+3)=a^6*(a²+3
(y-a^2)(y+a^2)=y²-a^4