How do you simplify $8^(1/7)+2(8^(1/7))$ ?

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Answer 1 · 2017-02-18T02:04:57

$3(2^(3/7))$

Change $8$ to $2^3$ : $(2^3)^(1/7) + 2((2^3)^(1/7))$

Use the exponent multiplication rule: $(a^m)^n = a^(m*n)$ :

$2^(3/7)+ 2(2^(3/7))$

Factor:

$2^(3/7)(1+2) = 3(2^(3/7))$

How do you simplify 8^(1/7)+2(8^(1/7))8^(1/7)+2(8^(1/7))?