Thursday, 26 January 2017

EXPONENTIALS 1C


If b4 + 20 = 36; find b.

Solution

b4 + 20 = 36

b4 = 36 – 20  [taking 20 in the right hand side]

b4 = 16

b = 2 [since the 4th root of 16 is 2]

Hence b = 2

TRY THIS…………………………


If m4 + 200 = 825; find m.

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