Question

4√16-6 3√216+18 5√243- √196

Answer 1

4√16-6 3√216+18 5√243- √196

4√16=2

6³√343=6×7

+18

5√243=3

√196=14

from the above,

4√16-6³√343+18 5√243-√196 = 2- 42= 18 x 3 - 14 = 0  

this is the answer

Answer 2

$\large{\underline{\underline{\bold{\red{\sf{Bonjour !}}}}}}$

answer is in attachment^^

$\large{\bold{\blue{\sf{thanks}}}}$