Asked by Mileena

When square root of 2800 is written as a mixed radical in form of a radical b, the value of ab is
A) 7
B) 27
C) 140
D) 280


I square root and simply it and got the answer 20 radical 7. But how do I find the value of ab
Answered by Steve
well, 2800 is 20^2 * 7 so ab = 140
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