Question

a=2+√3, b=2-√3, x=a+b, y=a-b​

Answer 1

Step-by-step explanation:

x=2+√3+2-√3=4

and y=2+√3-2+√3=2√3

Answer 2

Answer:

$x = 4 \: \: y = 2 \sqrt{3}$

Step-by-step explanation:

$a = 2 + \sqrt{3} \\ b = 2 - \sqrt{3} \\ \\ x = a + b \\ x = (2 + \sqrt{3}) + (2 - \sqrt{3}) \\ x = 4 \\ \\ y = a - b \\y = (2 + \sqrt{3}) - (2 - \sqrt{3}) \\ y = 2 \sqrt{3}$

Hope, you will get your answer..