Question

write the rationalising factor for the following a)√7 b)√3-√5 c)2+√3 d√5+√2 e)√7-2 f)√7-√6 g)√5+x h)√x-y I)√m+√n​

Answer 1

Answer:

know 5x5 = 25 and 6x6 = 36, so the square root of 30 is somewhere between 5 and 6. We'll start out by guessing 5.5.

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