a) √50 = √(25 x 2) = √(5² x 2) = 5√2. Jaclyn did the other way round. It's 25 that is a perfect square & not 2. 2 should remain under the radical
b) What is the square that is smaller & greater than 50
7² = 49 & 8² = 64, then √7² < √50 <√8²
Or 7<√50 <8, So the √50 is between 7 & 8, but very very near to 7,
Let's try 7.1. In squaring it (7.1 x 7.1) we find 50.41, which is a good approximation of √50
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