(2√7 – 2√3 ) (2√7 + 2√3 ) jd brpa y By Admin ReiPosted on December 8, 2022 (2√7 – 2√3 ) (2√7 + 2√3 ) jd brpa y Semoga bermanfaat… Jawabannya…..=4*7-4*3=28-12=16