Answer:
The answer to your question is:
a) 42√2
b) √330
c) 12√-5
Step-by-step explanation:
a)
4√27 + 6√75
27 = 3 x 3 x 3 = 3² x 3
75 = 3 x 5 x 5 = 3 x 5²
4√3² 3 + 6√5²3
4(3) √3 + 6(5) √3
12√3 + 30√3
42√3
b) √6 √11 √5
√ (6x11x5)
√ 330
c) 6√-20
20 = 2² x 5
6√- 2² x 5
6(2) √-5
12√-5
