=-7x(4x0.25)x5/24x3/2x1/4
=-7x5/16x1/4
=-7x5/64
=-35/64另一题呢哪一题你不是只发了一题吗？(⊙o⊙)哦。。我知道了，原来是两题——嗯，两题=-7x(4x0.25)
=-7=5/24x3/2x1/4
=5/16x1/4
=5/64要采纳哟~\(≧▽≦)/~