caranya gimana ya kak?

3√125 x 2√45
=3x5√5x2x3√5
=3x5x5x2x3
=450

Perkalian Akar

Soal
3√125 × 2√45 = ...

Penyelesaian
3√125 × 2√45
= 3(√25√5) × 2(√9√5)
= (3 × 5√5) × (2 × 3√5)
= 15√5 × 6√5
= 90 × 5
= 450 (D)