(ab)^5÷(a²·a³b^4)

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(ab)^5÷(a²·a³b^4)(ab)^5÷(a²·a³b^4)(ab)^5÷(a²·a³b^4)原式=a^5b^5÷(a^5b^4)=

(ab)^5÷(a²·a³b^4)
(ab)^5÷(a²·a³b^4)

(ab)^5÷(a²·a³b^4)
原式=a^5b^5÷(a^5b^4)
=b

(ab)^5÷(a²·a³b^4)
=a^5b^5/[a^(2+3)b^4]
=a^(5-5)b^(5-4)
=b

(ab)^5÷(a²·a³b^4)
=a^5b^5 ÷ (a^5b^4)
=a^5-5 b^5-4
=a^0 b
= b