Question

1. 5√20+√80-2√45
2. 2√18 + √32 -4√8
3. (32 pangkat 3/5)pangkat -2/3

Answer 1

1. 5√20+√80-2√45 = 17.88854382
2. 2√18 + √32 -4√8 = 2.8284271247
yang nomer 3 aku gatau:)

Answer 2

1. 5√20 + √80 - 2√45
= 5√4.5 + √16.5 - 2√9.5
=5.2√5 + 4√5 - 2.3√5
=10+4-6√5
=8√5
2. 2√18 + √32 - 4√8
= 2√9.2 + √16.2 - 4√4.2
= 2.3√2 + 4√2 - 4.2√2
= 6+4-8√2
=2√2