3⑥
-214a2b÷(-32ab2c)3×(-435ac2)×(34abc)2
-214a2b÷(-32ab2c)3×(-435ac2)×(34abc)2
=-214a2b÷(-278a3b6c3)×(-435ac2)×(916a2b2c2)
=-21a2b4×(827a3b6c3)×(4ac235)×(9a2b2c216)
=-21×8×4×94×27×35×16×a2b×ac2×a2b2c2a3b6c3
=-110×a2cb3
=-a2c10b3