(1)-8m²n²+2mn-16mn²(2)a⁴-5a²-36
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(1)-8m²n²+2mn-16mn²(2)a⁴-5a²-36
(1)-8m²n²+2mn-16mn²
(2)a⁴-5a²-36
(1)-8m²n²+2mn-16mn²(2)a⁴-5a²-36