(25a^2b^2-10ab)÷5ab+32ab^3÷(-2b)^2怎么做

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(25a^2b^2-10ab)÷5ab+32ab^3÷(-2b)^2怎么做(25a^2b^2-10ab)÷5ab+32ab^3÷(-2b)^2怎么做(25a^2b^2-10ab)÷5ab+32ab^3

(25a^2b^2-10ab)÷5ab+32ab^3÷(-2b)^2怎么做
(25a^2b^2-10ab)÷5ab+32ab^3÷(-2b)^2怎么做

(25a^2b^2-10ab)÷5ab+32ab^3÷(-2b)^2怎么做
(25a^2b^2-10ab)÷5ab+32ab^3÷(-2b)^2=(5ab-2)-8b=5ab-8b-2

=5ab-2+8ab=13ab-2