① 16m ^ - n ^ 4 ② 16 (a-b) & # - 178; - 9 (a + b) & # - 178; ③ x ^ 5y-xy ④ 2012 & # - 178; - 2011 & # - 178; ⑤ 429 & # - 178; × 2-171 & # - 178; × 2 ⑥ 1000 & # / 252 & # - 178; - 248 & # - 178; ⑦ (50 and 1 / 11) & # - 178; - (49 and 10 / 11) & # - 178;

① 16m ^ - n ^ 4 ② 16 (a-b) & # - 178; - 9 (a + b) & # - 178; ③ x ^ 5y-xy ④ 2012 & # - 178; - 2011 & # - 178; ⑤ 429 & # - 178; × 2-171 & # - 178; × 2 ⑥ 1000 & # / 252 & # - 178; - 248 & # - 178; ⑦ (50 and 1 / 11) & # - 178; - (49 and 10 / 11) & # - 178;

①16m^4-n^4=(4m²+n²)(4m²-n²)=(4m²+n²)(2m+n)(2m-n)②16（a-b）²-9（a+b)²=[4(a-b)]²-[3(a+b)]²=[4(a+b)+3(a-b)][4(a+b)-3(a-b)]=(7a+b)(-a+7b)=-(7a+b)(a-7b)...

Elden Ring Premiere

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