搜狗做题网计算a+[a+b]+[a+2b]+[a+3b]+...+[a+99b]
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计算a+(a-b)+(a-2b)+(a-3b)+.+(a+99b)
计算a+[a+b]+[a+2b]+[a+3b]+...+[a+99b]
计算：a+(a+b)+(a+2b)+(a+3b)+……+(a+99b)
计算a+b/b-a-b/b
计算：((a+b)(a-b)-(a-b)^2+2b(a-b))/4(a-b)
计算·[(2a+-b)/(a+b)-b/(a+b)]/(a-2b)/(a+b)
计算a-b+2b
计算a^2-b^2/a+b-4a(a-b)+b^2/2a-b
计算：3a+4b/a-b+3b/b-a-4a/a-b
计算：(2)(b-a)^2(a-b)
计算(a-b)(a+2b)
计算：a^2/a-b+b^2/b-a