Question

9倍的根号3+5倍的根号12+3倍的根号48等于多少？

Answer 1

9√3+5√12+3√48
=9√3+10√3+12√3
=31√3

Answer 2

12 = 3 × 4 = 3 × 2²，所以 √12 = 2√3，5√12 = 10√3
48 = 3 × 16 = 3 × 4²，所以 √48 = 4√3，3√48 = 12√3

9 + 10 + 12 = 31

最终结果 31√3