x平方-y平方/(x-y)平方還能再化簡嗎
(x²;-y²;)/(x-y)²;
=(x+y)(x-y)/(x-y)²;
=(x+y)/(x-y)
3X+4(-2X+8)=7解方程
3X-8X+32-7=0 X=5
6x^2-11xy+4y^2
6x^2-11xy+4y^2
=(2x-y)(3x-4y)
x平方+11xy+18y平方
x平方+11xy+18y平方
=(x+2y)(x+9y)