(-2a^2*b^3)^4+(-a)^8*(2b^4)^3
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(-2a^2*b^3)^4+(-a)^8*(2b^4)^3
(-2a^2*b^3)^4+(-a)^8*(2b^4)^3
(-2a^2*b^3)^4+(-a)^8*(2b^4)^3
(-2a^2*b^3)^4+(-a)^8*(2b^4)^3
=16a^8b^12+a^8*8b^12
=16a^8b^12+8a^8b^12
=24a^8b^12
计算:(4a-b)^2-[8a*(a-b)-(3a-b)*(3a+b)]
(3a+4b)(7a-8b)+(11a+2b)(8a-7a)
(a+2b)(2a+4b)(3a+6b)(4a+8b)
2(a+3b)²-8(a+b)(a-b)-(a+3b)(a-b)
2(a+b)-[4(a+b)-3(a+b)]一[5(a-b)+(a-b)]过程
2a(a-b)+4a(2a+3b)
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
[2(a-b)^2+4(a-b)^4+8a(a-b)^3]/2(a-b)^2
3a^2b-{2a^2b+[9a^b-(6a^2b+4a^2)]-(3a^2b-8a^2)}=
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
5(a*a*b-3*a*a*b)-2*(a*a*b-7*a*b*b)
已知(a-2b)/(a+2b)=4,求代数式3(a-2b)/4(a+2b)+(4a+8b)/(a-2b)的值
(a-2b)/(a+2b)=3,求(a+2b)/(a-2b)+(3a-6b)/(4a+8b)的解,
(a+2b)(a-2b)+(a-b)(a+b)-2(a-3b)(a-b)
1.(a-b)(a^2+ab+b^3)2.(a-b)(a^3+a^2b+ab^2+b^3)3.(a-b)(a^4+a^3b+a^2b^2+ab^3+b^4)4.(a-b)(a^10+a^9b+a^8b^2+...+ab^9+b^10)5.(X-1)(x^5+x^4+x^3+x^2+1)6.(a-b)(a^n+a^n-1b+a^n-2b^2+...+ab^n-1+b^n)
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=()
(3a+4b)(7a-8b)+(11a+2b)(8a-7a) 分解因式