Question

Combine these radicals 8 sqrt 5 + 2 sqrt 45

Answer 1

Answer:

14 sqrt 5

Step-by-step explanation:

Trust me :)

Answer 2

Answer:

Step-by-step explanation:

$8\sqrt{5}+2\sqrt{45}\\=8 \sqrt{5}+2\sqrt{9 \times 5}\\=8\sqrt{5}+2 \times 3 \sqrt{5}\\=8 \sqrt{5}+6 \sqrt{5}\\=14 \sqrt{5}$