(5√2+6√3)(6√2-5√3)ПОМОГИТЕ
(√17-√11)(√17+√11)
(2√x-5√y)(2√x+5√y)
(√6-2)`2
(3√7-2√3)`2

(5√2)^2-(6√2)^2=(25*2)-(36*2)=50-72=-22

(√17)^2-(√11)^2=17-11=6

(2√x)^2-(5√y)^2=4x-25y

(√6-2)^2=6-4=2

(9*7)-(4*3)=63-12=51