Question

2) Solve ( 3- ✓11) (3 +✓11)​

Answer 1

Answer:

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

Step-by-step explanation:

(3 -root11)(3 + root11)

(3)^2 - ( root 11)^2

9 - 11 =-2

Answer 2

Answer:

( 3 - √11 ) ( 3 + √11 )

3^ - ( √11 )^ ; ( a+b ) ( a-b ) = a^-b^

9 - 11

= -2