Question

evaluate : ³√27 + ³√0.008 + ³√0.064

Answer 1

3+0.8+4
=7.8
hope this help you

Answer 2

Answer:

$\sqrt[3]{27}+\sqrt[3]{0.008}+\sqrt[3]{0.064}=3.6$

Step-by-step explanation:

Given : Expression $\sqrt[3]{27}+\sqrt[3]{0.008}+\sqrt[3]{0.064}$

To find : Evaluate the expression ?

Solution :

$\sqrt[3]{27}+\sqrt[3]{0.008}+\sqrt[3]{0.064}$

$=\sqrt[3]{3\times 3\times 3}+\sqrt[3]{0.2\times 0.2\times 0.2}+\sqrt[3]{0.4\times 0.4\times 0.4}$

$=\sqrt[3]{3^3}+\sqrt[3]{0.2^2}+\sqrt[3]{0.4^2}$

We know, $\sqrt[a]{x^a}=x$

$=3+0.2+0.4$

$=3.6$

Therefore, $\sqrt[3]{27}+\sqrt[3]{0.008}+\sqrt[3]{0.064}=3.6$