Matematika B - 2024. probna, 3.

$(1-3a)(1+3a)(1-3\; a)(1+3\; a)$

$(1-9a)(1+9a)(1-9\; a)(1+9\; a)$

$(1-3a^2)(1+3a^2)\backslash left(1-3\; a^\{2\}\backslash right)\backslash left(1+3\; a^\{2\}\backslash right)$

$(1-9a^2)(1+9a^2)\backslash left(1-9\; a^\{2\}\backslash right)\backslash left(1+9\; a^\{2\}\backslash right)$