Question

Tolong.. barangkali ada yg bisa bantu yaa..
thanks ♥♥♥

Answer 1

Yg pertama:
x² - y² + 2xy
=> (x + y)(x -y) + 2xy
=> (2-√3+2+√3)(2-√3-2-√3) + 2(2-√3)(2+√3)
=> 4.-2√3 + 2.1 = 2 - 8√3 (A)