Question

Simplify 7.2√216 + 10 6√64 + 2√121​

Answer 1

$\sqrt[3]{27} = 3$

$\sqrt[3]{216} = 6$

$\sqrt[6]{64} = 2$

$\sqrt{121} = 11$

$so...$

$3 - 7 \times 6 + 10 \times 2 + 11$

$= 3 - 42 + 20 + 11$

$= 33 - 42$

$= - 8$