Question

Ayuda:
3√28 - 2√20 + 5√80 - 4√63

Answer 1

3√7*2²-2√2²*5+5√2²*2²*5-4√3²*7
3*2√7-2*2√5+5*4√5-4*3√7
6√7-4√5+20√5-12√7
-7√7+16√5