下列五个算式:①2a 2 b 3 +2a 2 b 3 =4a 4 b 6 ②2a 2 b 3 +2a 2 b 3 =4a
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下列五个算式:①2a 2 b 3 +2a 2 b 3 =4a 4 b 6 ②2a 2 b 3 +2a 2 b 3 =4a 2 b 3 ③2a 2 b 3 ·2a 2 b 3 =4a 2 b 3 ④2a 2 b 3 ·2a 2 b 3 =4a 4 b 6 ⑤2a 2 b 3 +2a 2 b 3 =6a 6 b 2 其中正确的是 |
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A.1个 B.2个 C.3个 D.4个 |
![下列五个算式:①2a 2 b 3 +2a 2 b 3 =4a 4 b 6 ②2a 2 b 3 +2a 2 b 3 =4a](/uploads/image/z/6477384-48-4.jpg?t=%E4%B8%8B%E5%88%97%E4%BA%94%E4%B8%AA%E7%AE%97%E5%BC%8F%EF%BC%9A%E2%91%A02a+2+b+3+%2B2a+2+b+3+%3D4a+4+b+6+%E2%91%A12a+2+b+3+%2B2a+2+b+3+%3D4a)
B
下列五个算式:①2a 2 b 3 +2a 2 b 3 =4a 4 b 6 ②2a 2 b 3 +2a 2 b 3 =4a
1.(a-b)^2(b-a)^3(a-b)^-4
(a+2b)(2a+4b)(3a+6b)(4a+8b)
(2a+b)(2a-b)-3a(4a-3b)+(4a-b)(2a-b) a=5分之3,b=3分之2
a+2b/2a-3b=3 求解4b+2a/9b-6a-4a-6b/3a+6b=?
a-b\a+b=1\2时,求代数式a+b\3(a-b) - a-b\2(a+b)
当a+2b/2a-3b=3,求代数式4b+2a/9b-6a-4a-6b/3a+6b
(2a+b)(2a-b)+3(2a-b)²+(-3(4a-3b)+3a-b)(2a-b)其中a=-1
如果a-2b/a+2b=3,求a+2b/a-2b+3a-6b/4a+8b
(a-2b)/(a+2b)=3,求(a+2b)/(a-2b)+(3a-6b)/(4a+8b)的解,
3a^2b-{2a^2b+[9a^b-(6a^2b+4a^2)]-(3a^2b-8a^2)}=
A=B+B+B+B+B+B+B+B+B+B+B+B+B+B+B A-B×3=C C+2×7+2=1