化简 3a-{2c-【6a-(c-b)+c+(a+8b-9c)】} (3a的平方-ab+1)-(4a的平方+6ab+7)3a-{2c-【6a-(c-b)+c+(a+8b-9c)】}(3a的平方-ab+1)-(4a的平方+6ab+7)
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化简 3a-{2c-【6a-(c-b)+c+(a+8b-9c)】} (3a的平方-ab+1)-(4a的平方+6ab+7)3a-{2c-【6a-(c-b)+c+(a+8b-9c)】}(3a的平方-ab+1)-(4a的平方+6ab+7)
化简 3a-{2c-【6a-(c-b)+c+(a+8b-9c)】} (3a的平方-ab+1)-(4a的平方+6ab+7)
3a-{2c-【6a-(c-b)+c+(a+8b-9c)】}
(3a的平方-ab+1)-(4a的平方+6ab+7)
化简 3a-{2c-【6a-(c-b)+c+(a+8b-9c)】} (3a的平方-ab+1)-(4a的平方+6ab+7)3a-{2c-【6a-(c-b)+c+(a+8b-9c)】}(3a的平方-ab+1)-(4a的平方+6ab+7)
3a-{2c-【6a-(c-b)+c+(a+8b-9c)】}
=3a-2c+6a-c-b-c-a-8b+9c
=8a-9b+5c
(3a的平方-ab+1)-(4a的平方+6ab+7)
=3a²-ab+1-4a²-6ab-7
=-a²-7ab-6
3a-{2c-【6a-(c-b)+c+(a+8b-9c)】}
=3a-[2c-(6a-c+b+c+a+8b-9c)]
=3a-(2c-6a+c-b-c-a-8b+9c)
=3a-2c+6a-c+b+c+a+8b-9c
=10a-11c+9b
(3a²-ab+1)-(4a²+6ab+7)
=3a²-ab+1-4a²-6ab-7
=-a²-7ab-6
化简(2a-b-c)/(a+b)(a-c)+(2b-c-a)/(b-c)(b-a)+(2c-a-b)/(c-b)(c-a)
化简【(2a-b-c)/ (a-b)(a-c)】+【(2b-a-c) / (b-c)(b-a) 】+【(2c-a-b) / (c-b)(c-a)】
5a-{-3b+[6c-2a-(a-c)]}-[9a-(7b+c)]
(a+b-c)^3*(c-b-a)^2*(a+b-c)^6 等于?)
化简|a-b|-2c-|c+b|+|3b| c
化简:7(a-b-c)-5(a+b-c)+3(a-b-c)+(a+b-2)
数学题如图,化简|c|-|c-b|+|a-c|+|a+b|(2)化简:|c|-|c-b|(3)化简: |c|-|c-b|+|a-c|+|a+b|
(a-b+c/a+b-c)-(a-2b+3c/b-c+a)+(b-2c/c-a-b)
化简a(a+b)(a+c)/(a-b)(a-c) +2b^2(c-a)/(b-c)(b-a) +2c^2(a+b)/(c-a)(c-b)
化简a(a+b)(a+c)/(a-b)(a-c) +2b^2(c-a)/(b-c)(b-a) +2c^2(a+b)/(c-a)(c-b)
化简:5(a-2b+c)-4(-a+b-c)+4(3a-2b)
化简;2A-(3A-2C+(2A-(2B+C)-B-2C)))-6C是化简
5a+{3b+[6c-2a-2(a-c)]}-[9a-(7b+c)]
5a-{-3b+[6c-2a-(a-c)}-[9a-(7b+c)]
5a-{-3b+[6c-2a-(a-c)]}-[9a-(7b+c)]
计算:5a-{-3b+[6c-2a-(a-c)]}-[9a-(7b+c)]
(a-b)(b-c)(c-a)/(b-a)(a-c)2(c-b)3
2a(a+b-c)-3b(a+b-c)+5c(c-a-b)