Question

Simplify: (7-√11)(7+√11) *​

Answer 1

Step-by-step explanation:

7(7+root11)-root11(7+root11)

49+7root11-7root14-11

49-11=38 is the answer of this question

Answer 2

$\huge{\mathbb{Question}}$

○Simplify:- (7 - √11) (7 + √11)

$\huge{\underline{\mathbb{\red{SOLUTION:-}}}}$

Recall the Algebraic Identities,

• i.e. (a)^2 - (b)^2 = (a -b) (a + b)

So, imposing this identity, we get,

${7}^{2} - { \sqrt{11} }^{2} \\ = 49 - 11 \\ = 38$