Question

4. Simplify
(i) (3-v11)(3+ (11)​

Answer 1

Step-by-step explanation:

$(3 - \sqrt{11} )(3 + \sqrt{11} )$

IDENTITY USED :

$(a + b)(a - b) = {a}^{2} - {b}^{2}$

SOLUTION :

${(3)}^{2} - {( \sqrt{11)} }^{2}$

$= 9 - 11$

$= - 2$