Question

(√2-√3)²-(√2-1)(√2+1)+2√6
VA ROG URGENTT

Answer 1

(√2-√3)^2-(√2-1)(√2+1)+2√6

folosim formula (a-b)^2=a^2-2ab+b^2

2-2√6+3-(√2-1)(√2+1)+2√6

simplifici -2√6 cu +2√6 si faci calculul 2+3

5-(√2-1)(√2+1)

folosim formula (a+b)(a-b)=a^2-b^2

5-(2-1)

5-1=4