Question

Simplify:

3 square root of 10 end root plus 7 square root of 15 end root minus 6 square root of 10 end root minus 4 square root of 15

3 square root of 10 end root minus 3 square root of 15

3 square root of 15 end root minus 3 square root of 10

3 square root of 30 end root minus 3 square root of 20

3 square root of 20 end root minus 3 square root of 30

Answer 1

\[3\sqrt{10} + 3\sqrt{15}\]

Answer 2

a