Question

please solution of this Questions urgent please​

Answer 1

Answer:

(a) 223

(b) 5 and √21

(c) 19

Explanation:

(a) 15² - 2 = 225 - 2 = 223

(b) 23 + 2 = 25

(a + 1/a) = √25 = 5

23 - 2 = 21

(a - 1/a) = √21

(c) (x + y)² = x² + y² + 2xy

(5)² = x² + y² + 2×3

(x² + y²) = 25 - 6 = 19

I hope it is clear, please Brainliest the answer.