问题
解答题
已知,a=-2,b=-
|
答案
原式=(-2+
)×(-4)+(-2+1.5)÷(-3 4
)3 4
=(-
)×(-4)+(-5 4
)×(-1 2
)4 3
=5+2 3
=5
.2 3
已知,a=-2,b=-
|
原式=(-2+
)×(-4)+(-2+1.5)÷(-3 4
)3 4
=(-
)×(-4)+(-5 4
)×(-1 2
)4 3
=5+2 3
=5
.2 3