Question

Solve the following
i)(√5+√3)( √5-√3)
ii)( √5+√7)2​

Answer 1

i). (√5+√3 )(√5-√3 )

= (√5)^2 - (√3)^2

= 5-3

= 2

ii). (√5+√7)2

= (2√5)+(2√7)

hope this helps you

have a great day

Answer 2

Answer:

hey mate

here is ur answer

i) (√5+√3)(√5-√3)

by using identity (a+b)(a-b) = a² - b²

so, (√5)² - (√3)²

5 - 3

=. 2

ii) (√5+√7)²

= by using identity : (a+b)²= a²+b²+ 2ab

so, (√5)²+ (√7)²+ 2*√5*√7

5+ 7+ 2√35

= 12+2√35

hope it helps u

thanks for giving me a chance to help you

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