Jika x = 2+√3 dan y = 3-√2 maka x² + y² - 2xy =....

6 + √3 - 4√2 + 2√6

Perhitungan terlampir

x =2+√3 
y =3-√2
x²+y²-2xy =...?

x²+y²-2xy
= (2+√3)² + (3-√2)² - 2(2+√3 . 3-√2)
= (4+2.2.√3+5) + (9-2.3.√2+2) - (4+2√3.6-2√2)
= 9+4√3 + 7-6√2 - 12+4√6


semoga membantuu,, maaf klo salahh