Question

please tell this question​

Answer 1

(q4) (4+√7)(3+√3)

= 4(3+√3) +√7(3+√3)

= 12 +4√3 +3√7 +√21

(q5) (7+√3)(5-√2)

= 7(5-√2)+√3(5-√2)

=35-7√2+5√3-√6