2,3,6,9,17,() A.33 B.27 C.45 D.19 括号里应该选择几?2,3,6,9,17,()A.33 B.27 C.45 D.19括号里应该选择几?
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2,3,6,9,17,()A.33B.27C.45D.19括号里应该选择几?2,3,6,9,17,()A.33B.27C.45D.19括号里应该选择几?2,3,6,9,17,()A.33B.27C.4
2,3,6,9,17,() A.33 B.27 C.45 D.19 括号里应该选择几?2,3,6,9,17,()A.33 B.27 C.45 D.19括号里应该选择几?
2,3,6,9,17,() A.33 B.27 C.45 D.19 括号里应该选择几?
2,3,6,9,17,()
A.33 B.27 C.45 D.19
括号里应该选择几?
2,3,6,9,17,() A.33 B.27 C.45 D.19 括号里应该选择几?2,3,6,9,17,()A.33 B.27 C.45 D.19括号里应该选择几?
选择C
5a-{-3b+[6c-2a-(a-c)]}-[9a-(7b+c)]
计算:1/a-1+2/1-a的平方(2)a平方/a+b-a+b(3)(a+3b)平方•a/a平方-9b平方+6a平方b/2ab-a平方
先化简,再求值:(2a-b)^2-(2a+b)(a-b)-3(a-3b)(a+3b),其中|a-1|+b^2=6b-9
(a^2+1)(-4a^2+1)+a^4-1 3a(a-b)(a+b)-6(b-a)^2a^2-9(a-b)^2= 3a(a-b)(a+b)-6(b-a)^2=
(3a-2b)(9+6b)
对任意自然数a,b,规定a#b=2*a+b,若a#2a#3a#4a#5a#6a#7a#8a#9a=3039,则A=()
A-B A+B 2B+A 3A-B 6A+2B
a+2b/2a-3b=3 求解4b+2a/9b-6a-4a-6b/3a+6b=?
当a+2b/2a-3b=3,求代数式4b+2a/9b-6a-4a-6b/3a+6b
a+2b/2a-3b=3 求解4b+2a/9b-6a-4a-6b/3a+6b=?
计算(3a-2b)(9a*a+6ab+4b*b)-(3a+2b)(9a*a-6ab+4b*b)
2b根号a/b+3/a根号a立方b-(4a根号b/a+根号9ab)
已知a+b分之2a-b=6,求代数式a+b分之2(2a-b)+2a-b分之3(a+b)的值
已知a-2b/a+b=2,求2(a-2b)/a+b-a+b/3a-6b的值.
当a-b/a+b=1/3时,求9(a-b)/a+b-a+b/2(a-b)的值已知a+2B,c+5a(a不为0),求6a+2b-c/a-4b+c
3a^2b-{2a^2b+[9a^b-(6a^2b+4a^2)]-(3a^2b-8a^2)}=
9(a-b)(a+b)-3(a-b)^2
当(a+2b/2a—3b)=3时,求代数式(4b+2a/9b—6a)—(4a—6b/3a+6b)的值