(x+y)/25+(a-b)/5-(1/5)[a-b-(24/5)(x+y)]

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(x+y)/25+(a-b)/5-(1/5)[a-b-(24/5)(x+y)]
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(x+y)/25+(a-b)/5-(1/5)[a-b-(24/5)(x+y)]
(x+y)/25+(a-b)/5-(1/5)[a-b-(24/5)(x+y)]

(x+y)/25+(a-b)/5-(1/5)[a-b-(24/5)(x+y)]
(x+y)/25+(a-b)/5-(1/5)[a-b-(24/5)(x+y)]
=(x+y)/25+(a-b)/5-(1/5)(a-b)+(1/5)(24/5)(x+y)
=(x+y)/25+0+(24/25)(x+y)
=x+y

25x+25y

原式=(x+y)/25+(a-b)/5-1/5(a-b)+24/25(x+y)=x+y

(x+y)/25+(a-b)/5-(1/5)[a-b-(24/5)(x+y)] 因式分解-5a^2+25a;25x^2-16y^2;x^3-25x;x^2(x-y)+y^2(y-x);x^2y^4-16x^2;(a+b)^2+2(a+b)+1 1) (2x+5y)(2x-5y)(-4x^2-25y^2) 2) [(x+y)(x-y)-(x-y)^2+2y(x-y)]÷4y 3)整式乘除 3)(a+b)^2-2a(b+1)-a^2b÷ab 4)(a^2+3)(a-3)-a(a^2-2a-2) (5)a(x+y)-b(x+y)-x-y因式分解 3a+b/a平方-9b平方 - 2a-b/a平方+ab-6b平方 + a-b/5ab-a平方-6b平方 (xy-x平方)*xy/x-y[(x/y-y/x 除以(x+y)+x(1/y-1/x)]除以1+x/y 若10的2y次方=25,则10的负y次方等于多少?1/x平方-1 - 2/x+1 + 3/1 - x=0(方程) 3 因式分解:(1)、(2a-3b)(7x+y)+(x-5y)(3b-2a)(2)、(x+y)^3(x+y)^2-(-x-y) 因式分解 3a(x-y)-5b(y-x)a^3b-25ab^3 2x/x+y+2y/x+y a/a+b+b/a-b 1/3x²+2/4y-5/6xy解出来快 -4a^3+16a^2b-26ab^2 x^5-x^3 (x^2+y^2)^2-4x^2y^2 25(x+y)^2+10(x+y)+1 a*(-a^2)^3*(a^3)^2 多项式因式分解,(1)y(x-y)+x(x-y) (2)y(x-y)+x(y-x)(3)a(x-y)^2-b(y-x)^2 (4)a(x-y)^3-b(y-x)^3(5)a^2b(a-b)-ab^2(a-b) 1、(-y^3)^5/y^3/ y^2+2(-y)^102、(x-y)^7/(y-x)^6+(x+y)^3/(x+y)^23、已知X^a=5,x^b=3,求X^(3a-2b)的值 已知a^x-y*a^2y+1=a^11,且b^x-1*b^4-y=b^5,求(x^2)*y的值 已知a^x-y*a^2y 1=a^11且b^x-1*b^4-y=b^5,求x^2y的值 计算:-4x²+25(x+3y)(2x-y)2(x+5)(x-4)-3(x-6)(x+1)13.25²-6.25²(简算)分解因式:4x(a-b)-8y(b-a) 数学计算题(追加赏分)(1) 2x-2y+3xy(x-y)(2) 5(a+b)(y-x)-2a(a+b)(x-y) (1). (a+b)-(a+b)^2 (2).(y-x)^2-2(x-y) (3).2m(a-3)(1). (a+b)-(a+b)^2(2).(y-x)^2-2(x-y)(3).2m(a-3)+4(3-a)(4).4(y-x)^3-2(x-y)^2(5).(a+b)^2+2(b+a)(6).(a-b)^3-(b-a)^4 x+y-(2x-y)(x+y)=?12(a^2-b^2)^2-3(a^2+b^2)(a+b)^2等于多少(2a-b)(2a+3b)+3a(b-2a)=-(2a-b)( ),a(x-3)(5-x)+b(3-x)(x-5)=( )(x-3)(a+b)代数式15x^3y^3(x-y),6x^2y^2(y-x),-120x^3y^3(x-y)(x+y)的公因式是?a-b+k(b-a)=( )(k-1)a(b-c)+c-b=(b-c) 1(x-3x-1)(x+3y-1)2(3x-2y+1/4)²3(a+b)²-(a-b)²4 [2x²-(x+y)(x-y)][(-x-y)×(y-x)+2y²],其中x=1 y=25[(0.5x-y)²+(0.5x+y)²](0.5x²-2y²)6(a+3b)²-2(a+3b)(a-3b)+(a-3b)²7