Question

evaluate 125 Cube + 3 Cube
$\sqrt[3]{125 + 3 {}^{3 } }$
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Answer 1

answer is 8

this explanation is done in photo

Answer 2

(125+3^3)^1/3

=(5^3+3^3)^1/3

=[(5+3)^3]^1/3

{ Since, [a^m+b^m=(a+b)^m] }

=(8^3)1/3

= 8^3×1/3

[(a^m)^n= a^m×n]

= 8

Ans: 8.