Question

need immediatly
pls fast thx

Answer 1

Answer:

answer is 20

Step-by-step explanation:

√25 =√ 5×5 = 5

√16 = √4×4 = 4

5 × 4 = 20

Answer 2

Answer:

$\sqrt{25} \times \sqrt{16} \\ = \sqrt{5 \times 5} \times \sqrt{4 \times 4} \\ = 5 \times 4 \\ = 20$