This question was asked in Ex 1.6,2

How to solve (√8-√9)(√8+√9)

Sarita Naik

July 28, 2021, 4:40 p.m.

Answers!

Visalee Balasankar

July 28, 2021, 10:35 p.m.

(√8-√9)(√8+√9) .. See here this can be done by using the formulae (a+b)(a-b) = a^2 - b^2 the ans can calculated by (√8)^2 - (√9)^2 = 8-9 =-1

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