Question

expand (2 root2- root 6)(2 root2+root6)

Answer 1

Answer:

(2√2-√6)(2√2+√6)

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

= (2√2)^2-(√6)^2

= 8-6

= 2

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Answer 2

Answer:

2

Step-by-step explanation:

=(2√2-√6)(2√2+√6)

={2√2)²-(√6)²

=8-6

=2