Question

Tolong bantu yaa pake cara kalau bisa, poinnya banyak loh

Answer 1

(5√2+√3) (5√2-√3) = 5√2 (5√2-√3) + √3 (5√2-√3) = 25 x 2 - 5√6 + 5√6 - 3 = 50-3 = 47

Answer 2

1. (5V2 + V3)(5V2 - V3)
= (5V2)^2 - (V3)^2
= 50 - 3
= 47

2. (7V5 - V2)^2
= (7V5)^2 - 2(7V5)(V2) + (V2)^2
= 245 - 14V10 + 2
= 247 - 14V10