化简:(1)25(a-2b)^2-64(b+2a)^2 (2)1/8*1001-0.125
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![化简:(1)25(a-2b)^2-64(b+2a)^2 (2)1/8*1001-0.125](/uploads/image/z/8600008-40-8.jpg?t=%E5%8C%96%E7%AE%80%EF%BC%9A%EF%BC%881%EF%BC%8925%EF%BC%88a-2b%29%5E2-64%28b%2B2a%29%5E2+%EF%BC%882%EF%BC%891%2F8%2A1001-0.125)
化简:(1)25(a-2b)^2-64(b+2a)^2 (2)1/8*1001-0.125
化简:(1)25(a-2b)^2-64(b+2a)^2 (2)1/8*1001-0.125
化简:(1)25(a-2b)^2-64(b+2a)^2 (2)1/8*1001-0.125
(1)原式=(5(a-2b)+8(b+2a))[5(a-2b)-8(b+2a]=-(21a-2b)(11a+18b)
(2)原式=1/8*(1000+1)-0.125=1/8*1000+1/8-1/8=125