Question

(3root 5-5root2)(4root5+3root2)

Answer 1

Step-by-step explanation:

$(3 \sqrt{5} - 5 \sqrt{2} )(4 \sqrt{5} + 3 \sqrt{2} ) \\ 12 \times 5 - 20 \sqrt{10} + 9 \sqrt{10} - 15 \times 2 \\ 60 - \sqrt{10} - 30 \\ 30 - \sqrt{10}$

i hope its helpfull