Simplify the sum or difference.
negative 6 square root 10 plus 5 square root 90
(1 point)
9 start root 10 end root
negative 9 start root 10 end root
negative 39 start root 10 end root
negative 10
negative 6√10 + 5√90
= negative 6√10 + 5√(9 * 10)
= negative 6√10 + 5(3√10)
= negative 6√10 + 15√10
= 9√10