(8a-7b)-(4a+5b)+(-2b+3a)
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(8a-7b)-(4a+5b)+(-2b+3a)
(8a-7b)-(4a+5b)+(-2b+3a)
(8a-7b)-(4a+5b)+(-2b+3a)
原式=8a-7b-4a-5b-2b+3a=7a-14b
初二分式的加减法2a-b-c/(a-b)(a-c)+ 2b-c-a/(b-c)(b-a)+ 2c-b-a/(c-b)(c-a)3a-6b/a+b- 5a-6b/a-b- 4a-5b/a+b+ 7a-8b/b-a注:有空格的地方是下一个分式
(3a-6b)/(a+b) - (5a-6b)/(a-b) - (4a-5b)/(a+b) - (7a-8b)/(a-b) 快
(3a-6b/a+b)-(5a-6b/a-b)-(4a-5b/a+b)-(7a-8b/b-a)
5(a*a*b-3*a*a*b)-2*(a*a*b-7*a*b*b)
化简8(a-b)2+4(a-b)+5(b-a)-6(b-a)2
2(a+b)-[4(a+b)-3(a+b)]一[5(a-b)+(a-b)]过程
(8a-7b)-2(4a-5b)
1/(a-b)-1/(a+b)-(2b)/(a^2+b^2)-(4b^3)/(a^4+b^4)+(8b^7)/(b^8-a^8)快
1/a-b-1/a+b-2b/a^2+b^2-4b^3/a^4+b^4+8b^7/b^2-a^2
8a-7b-(4a-5b)+3a-2b)
(8a-7b)-(4a+5b)+(-2b+3a)
(8a-7b)-(4a-5b)+3(a-2b)
(3a+4b)(7a-8b)+(11a+2b)(8a-7a)
a-b/a+b=4,求代数式5(a-b)/a+b-a+b/2(a-b)的值.
若a-b/a+b=4,求5a-b/a+b- a+b/2(a-b)
若a-b/a+b=4,求代数式5(a-b)/a+b-a+b/2(a-b)
1/(a-b)-1/(a+b)-2b/(a^2+b^2)-4b^3/a^4+b^4+8b^7/b^8-a^81/(a-b)-1/(a+b)-2b/(a^2+b^2)-4b^3/(a^4+b^4)+8b^7/(b^8-a^8)
计算:(4a-b)^2-[8a*(a-b)-(3a-b)*(3a+b)]