Math, asked by alfinroby67, 9 months ago

Simplify i)(√7-√3)² ii)(5-√11) (5+√11)

Answers

Answered by cutie08
3

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Answered by ishwarsinghdhaliwal
1

i)(√7-√3)²

=> (√7)²+(√3)²-2(√7)(√3)

=> 7+3-2√21

=> 10-2√21

ii)(5-√11) (5+√11)

=> (5)²-(√11)²

=> 25-11

=> 14

Remember:

(a-b)²= a²+b²-2ab

a²-b²=(a+b)(a-b)

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