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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