\(D=3^2x9^2x243+18x243x324+723x729\)
\(D=9x9^2x243+6x3x3^5x324+723x729\)
\(D=729x243+729x6x324+723x729\)
\(D=729x\left(243+6x324+723\right)\)
\(D=729x2910\)
\(D=2121390\)
\(D=3^2\)X \(9^2\)X \(243+18\)X \(243\)X \(324+723\)X \(729\)
\(D=177147+1417176+527067\)
\(D=2121390\)
--------- TK VÀ NHÉ ---------
---------CHÚC CẬU HỌC GIỎI -------
\(D=3^2.9^2.243+18.243.324+723.729\)
\(D=9.81.243+18.243.324+723.243.3\)
\(D=243.\left(9.81+18.324+723.3\right)\)
\(D=243.\left(729+5832+2169\right)\)
\(D=243.8730=2121390\)
