Question

√12 X √15 is equal to

0 points

√25

6√5

10√5

5√6


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Answer 1

Answer:

$6 \sqrt{5}$

Step-by-step explanation:

$\sqrt{12} \times \sqrt{15} = \sqrt{12 \times 15} \\ = \sqrt{4 \times 3 \times 3 \times 5 } \\ = \sqrt{2 \times 2 \times 3 \times 3 \times 5} \\ = 2 \times 3 \times \sqrt{5} \\ = 6 \sqrt{5}$

Answer 2

Answer:

6√5

Step-by-step explanation:

√a × √b = √ab

√12 X √15 = √12 × 15

= √180

By prime factorisation of 180, we get

180 = 2 × 2 × 5 × 3 × 3

= 2² • 5 • 3²

So, √180 = √2² • 5 • 3²

= 2 × 3 √ 5 = 6√5