Question

2倍根号十二+4倍根号27分之一+3倍根号48等于多少?

Answer 1

2√12+4√(1/27)+3√48

=2√(2²×3)+4√(3/9²)+3√(4²×3)

=2×2√3+4×(√3)/9+3×4√3

=4√3+(4√3)/9+12√3

=16√3+(4√3)/9

=(148√3)/9