Question

simplify the following question
$(5 + \sqrt{7} )(2 + \sqrt{5} )$

Answer 1

$<b>$Answer :

$= > (5 + \sqrt{7})(2 + \sqrt{5} ) \\ \\ multiply \: the \: 1st \: term \: of \: first \: bracket \: with \: both \: the \: terms \: of \: 2nd \: bracket \\ \\ then \: multiply \: the \: 2nd \: term \: of \: 1st \: bracket \: with \: both \: the \: terms \: of \: 2nd \: bracket. \\ \\ like \: this..... \\ \\ = > 5(2 + \sqrt{5} ) + \sqrt{7} (2 + \sqrt{5} ) \\ \\ = > 10 + 5 \sqrt{5} + 2 \sqrt{7} + \sqrt{35}$
Note :

We can't use any identity in this question because no term reoccurs.

Tysm for the question!