Question

please help me to solve this sum​

Answer 1

Answer:

-19

Step-by-step explanation:

Given

(2+√3)(2-√3) - (3-√11)(3+√11)

using identity (a+b)(a-b) = a^2-b^2

so

(2+√3)(2-√3) - (3-√11)(3+√11)

= (2)^2-(√3)^2 - (3)^2-(√11)^2

= 4-3-9-11

= 4-23

= -19

hope this will help you

Answer 2

Answer:

(2^2-✓3^2)-(3^2-✓11^2)

(4-3)-(9-11)

1-(-2)

1+2=3

so answer of this question is 3

Step-by-step explanation:

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