Question

(b) [(root 3+ root11) (root3 - root11)]2​

Answer 1

this is easy

a+b * a-b = a² - b²

so, here

(√3)² - (√11)² * 2

3 - 11 * 2

-8 * 2

-16

this is the correct answer.

Answer 2

Answer: -16

Step by Step Explanation :

= By Using Identity ;

[ (a+b)(a-b) = a^2 - b^2 ]

= [(√3)² - (√11)²] 2

= [3 - 11] 2

= -8 x 2

= -16