Question

simplify 3^3 √40 -4^3√320-3√5​

Answer 1

Answer:

Step-by-step explanation: 3^3 √40 -4^3√320-3√5​

=9√2*2*2*5 -64√2*2*2*2*2*2*5-3√5

=9*2√10-64*2*2*2√5-3√5

=18√10-384√5-3√5

=-808.437309409

Hope it helps