Question

question 10 please solve. don't answer if you don't know please. ​

Answer 1

Question :

(√7+2√6)-(√7-2√6)

Solution :

(√7+2√6)-(√7-2√6)

= √7+2√6-√7+2√6

= √7-√7+2√6+2√6

= 2√6+2√6

= √6(2+2)

= 4√6

Note :

same sign = addition

opposite sign = subtraction