Question

please find the answer.​

Answer 1

Answer:

(a) 7

Step-by-step explanation:

x = 2/3 + √7

x = 2/ 3 + √7 . 3 - √7/3 - √7

x = 2(3 - √7) / (3)2 - (√7)2

x = 2(3 - √7) / 9 - 7

x = 2(3 - √7) / 2.

x = 3 - √7

(x - 3)2 = (3 - √7 - 3)2

(-√7)2

7