(2根号x-3根号y)2-(3根号x-2根号y)2

(2根号x-3根号y)2-(3根号x-2根号y)2
(2根号x-3根号y)2-(3根号x-2根号y)2

(2根号x-3根号y)2-(3根号x-2根号y)2
=(2√x-3√y+3√x-2√y)(2√x-3√y-3√x+2√y)
=(5√x-5√y)(-√x-√y)
=-5(√x-√y)(√x+√y)
=-5(x-y)
=5y-5x

(2根x-3根y）²-（3根x-2根y）²=（2根x-3根y+3根x-2根y）（2根x-3根y-3根x+2根y）=-5（根x-根y）（根x+根y）=-5x+5y。。