4a^9 b^4 ×6a² b^6 : 8a^6 b^8 adalah

[tex] \frac{4a {}^{9} b {}^{4} \times 6a {}^{2} b {}^{6} }{8a {}^{6}b {}^{8} } \\ = \frac{a {}^{3} \times 6a {}^{2} b {}^{6} }{2b {}^{4} } \\ = a {}^{3} \times 3a {}^{2} b {}^{2} \\ = 3a {}^{5} b {}^{2} [/tex]