(-1/2ab^2)^2*8a^2b÷(-1/3a^3b^2)

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(-1/2ab^2)^2*8a^2b÷(-1/3a^3b^2)
(-1/2ab^2)^2*8a^2b÷(-1/3a^3b^2)

(-1/2ab^2)^2*8a^2b÷(-1/3a^3b^2)
(-1/2ab^2)^2*8a^2b÷(-1/3a^3b^2)
=1/4a^2b^4*8a^2b÷(-1/3a^3b^2)
=2a^4b^5÷(-1/3a^3b^2)
=6ab^3

(-1/2ab^2)^2*8a^2b÷(-1/3a^3b^2)
=1/4a^2b^4*8a^2b÷(-1/3a^3b^2)
=1/4×8×(-3)a^(2+2-3)b^(4+1-2)
=-6ab^3

=1/4a^2b^4*8a^2b÷(-1/3a^3b^2)
=2a^4b^5÷(-1/3a^3b^2)
=6ab^3