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

$3\sqrt{10}+7\sqrt{15}-6\sqrt{10}-4\sqrt{15}\\\\=(3\sqrt{10}-6\sqrt{10})+(7\sqrt{15}-4\sqrt{15})\\\\=\boxed{-3\sqrt{10}+3\sqrt{15}}\to\boxed{3\sqrt{15}-3\sqrt{10}}$

Answer 2

The simplified form of the problem given is 3 square root of 15 end root minus 3 square root of 10. The correct answer between all the choices given is the second choice. I am hoping that this answer has satisfied your query and it will be able to help you, and if you would like, feel free to ask another question.