cara mengerjakan soal nomor 3,4,5 beserta rumusnya

3.= 20 x12 :60
= 4 hari (A)
4. √36 x ∛27²
=6x3²
=6x9
=54 (A)
5. 2√9.2+√25.2-3√4.2
=2.3√2+5√2-3.2√2
=6√2+5√2-6√2
=5√2(A)