Question

2√12+3√48+√272根号12+3根号48+根号27

Answer 1

答：

2√12+3√48+√27

=2√(4*3)+3√(16*3)+√(9*3)

=2√4*√3+3√16*√3+√9*√3

=2*2√3+3*4*√3+3*√3

=4√3+12√3+3√3

=19√3