Question

11. Simplify: (3 root 5-5 root 2)(4 root 5 +3 root 2)​

Answer 1

Answer:

$90 + 29 \sqrt{10}$

Step-by-step explanation:

$(3\sqrt{5} + 5 \sqrt{2}) \times (4 \sqrt{5} + 3 \sqrt{2} ) \\ = 60 + 9 \sqrt{10} + 20 \sqrt{10} + 30 \\ = 90 + 29 \sqrt{10}$