化简-(+4);-(-6);-(+3.9);-(3/4);-(-55);+(-4/3);-【-(8.2】;
化简-(+4);-(-6);-(+3.9);-(3/4);-(-55);+(-4/3);-【-(8.2】;
解下列方程并写出检验的过程 5(x-3)=55 4(x+8.2)=40.8 (x-9)\7=6
(3)(4)
√(7+3*√4) 化简
化简:(√6+4√3+3√2)/[(√6+√3)(√3+√2)]
化简-(+8),-(+2.7)-(-3)-(-4分之3)
(3)、(4)题咋做啊?
化简:(x+2)(x-5)+(x-3)(x+4)
(+1)+(+2)+(-3)+(-4)+(+5)+(+6)...+(+197)+(+198)+(-199)+(-200)
(1)4 6 3 (2)6 9 4 (3)5 8 4 (4)10 15 6
(-5/12)×4/15×(-3/2)×(-6)
找规律3,4,6,8,9,()()()