Question

( 2 root 5 + 2 root 2 ) ( 2 root 5 - 3 root 2)​

Answer 1

Step-by-step explanation:

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Answer 2

(2√5+2√2)(2√5-3√2)

=2√5(2√5-3√2)+2√2(2√5-3√2)

=20-6√10+4√10-12

=20-12-6√10+4√10

=8-2√10

hence, 8-2√10 is the answer.