(6/5a^3x^4-0.99x^3)÷3/5ax^3
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x^2-x/x+1÷x/x+1 ;x^2+6x+9/x^2-9÷x+2/x-3;2/a÷4/a
(1)(a³/3xy²)²÷(-ay/2x²)³;(2)y/(x²-xy)+xy/(2x-2y)(3)x/(x+2)- 2x-1/(x²+4x+4)(4)[x+2/(x²-2x)-x-1/(x²-4x+4)]÷4-x/x;(5)[a+2/(a²-2a)-a-1/(a²-4a+4)]×a-2/a÷4-a/a²;(6)x+3y/(
matlab中a(x)=x^4+3x^3+9x-18 b(x)=x^5-4x^3-18x+7 c(x)=x^7+6x^5+9x^3-5x^2-2 d(x)=x^9-8x^7+6x^5-4x^4+d(x)=x^9-8x^7+6x^5-4x^4+6x^2+3 求e(x)=a(x)*b(x)*c(x)*d(x)
EXCEL两表间同时满足两个条件数据引用如题:表1为原始数据表1 2 3 4 5 6 7 8 9 10.A X X X X X X X X X XB X X X X X X X X X XC X X X X X X X X X XD X X X X X X X X X X .表2(A列) (B列) (C列)A 1A 3B 8B 5C 2D 3......
化简:1.(x²-4/x²-4x+4-x-2/x+2)÷x/x-22.(a+2/a²-2a-a-1/a²-4a+4)÷4-a/a²-2a3.x²+9x/x²+3x+x²-9/x²+6x+9解方程1.x+1/x-1-4/x²-1=12.1/x+2+1/x=32/x²+2x3.3x+4/3x-5+1=4x+1/2x-3
(x-6)(x-3)(x+2)(x+4)-84x^2(x+a)(x+2a)(x+3a)(x+4a)+a^4
分式约分a-b/a^2+ab乘a^2b^2-a^4/ab-a^2.x^2-3x/x^2-6x+9乘x^2-11x+30/x^2-5x16-x^2/x^2-2x-3÷x^2-5x+4/x-3
分式约分a-b/a^2+ab乘a^2b^2-a^4/ab-a^2.x^2-3x/x^2-6x+9乘x^2-11x+30/x^2-5.16-x^2/x^2-2x-3÷x^2-5x+4/x-3
①3a(5a-2b) ②(x-3y) ×(-6x) ③化简x(x-1)+2x(x+1)-3x(2x-5) ①(x+2)(x+3)②(X-4)(x+1)
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8(2) 已知x+3/(x-2)^2=A/x-2 + B/(x-2)^2 ,求A和B的值.
6-5x+x^2 x-3 x^2+5x+4 -------- ÷ ----×---------------- x^2-16 4-x 4-x^2上传不了图-( 6-5x+x^2)/(x^2-16)÷(x-3)/(4-x)×(x^2+5x+a)/(4-x^2)
(x+3x+5x...+2009x)-(2x+4x+6x+...+2010x)
x^2-6x+5= A(x-2)(x-3)B(x-6)(x+1)
⒈(x+1)/(x^2-x-6)+3/(5x^2-10+5x)-(x-2)/(x^2-4x+3)⒉1/(x-a)-1/(x+a)-2a/(x^2+a^2)-4a^3/(x^4-a^4)⒊1/(x-2)-1/(x+2)-4(x^2+4)-32/(x^4-16)
xy²/(x²y) - y×x²/(x²+x)=(x²-3x)/(x²-5x×2x) - 10/(x²-6x+9)=2a/(a²-4) - 1/(a-2)=2/(1-a ) - 1/(a-1)=x²-1/(x²-x-2)除以x/2x-4,其中x=1/2[x-x/(x+1)]除以[x/(2x-4)] ,其中x=√2+1
分式的乘除:4a+4b/5ab*15a²cb/a²-b² x²-4y²/x²+4x+4*x+2/3x²+6xyx²+1/x-6*x²+36/x³+x y²-x²/5x²-4xy÷x+y4a+4b/5ab*15a²cb/a²-b²x²-4y²/x²+4x+4*x+2/3x²+
计算题:① <(x-1/x+1)-(x+1/x-1)>÷x+3/x*x+4x+4)② (a*a-2ab+b*b)/(a*a+ab)*(a+b)/(ab-b*b)③ (2x/x*x-1)-1/(x-1)④ -a-6约分:① 1/2*x*x*y ,1/3*x*y*y② 1/(2x+2) ,3/(x*x-1)化简:① (3+x)/(2+x)+(x*x-4)