Question

Simply a) (3+√5) (4+√6) b) (4+√6) (4-√6)

Answer 1

Step-by-step explanation:

a)( 3+√5 ) (4+√6)

3(4+√6)+√5(4+√6)

= 12+3√6+4√5+√30

b) (4+√6)(4-√6)

4(4-√6)+√6(4-√6)

16-4√6+4√6-6

= 10

hope it helps you

Answer 2

Answer: a) (3+√5)(4+√6)

= 3×4 + 3×√6 + √5×4 + √5×√6

= 12+3√6+4√5+√30

b) (4+√6) (4-√6)

Answer: = 16 - 4√6 + 4√6 - √36

= 16 - 6

= 10