c
(x+5y)(x-5y)等于A.25y2-x2B.x2+25y2C.x2-25y2D.x2+10xy+25y2
4个回答
相关问题
-
二元二次方程组求解(5√2 )x=25+x^2-y^2xy=x^2+y^2-25[(5√6-5√2)/2]y=25+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^4-1
-
因式分解:(x^2+10xy+25y^2)/(x+5y)
-
2x^2-5xy=2y^2-5x-5y-25 因式分解
-
若x+y=4 xy=-2那么x^2+y^2等于() A 25 B 20 C 10
-
(x-y)^3-(y-x)^25a^2(x-y)+10a(y-x)(m-n)^2-10(n-m)+25(x+y)^2 -
-
(5x^4-10x^3y+25x^2y^2)/(-5x^2)
-
(x+y)^2-z^=a^2-(b-c)^2=(x-y)^3-x+y=16(x+y)^2-25(x-y)^2=
-
(2x-5y)·_____=4x^2-25y^2
-
因式分解25x^2-10xy+y^2+10x-2y-3