Question

$\sqrt{5} \times \sqrt{45} =$
the value of ...​

Answer 1

Step-by-step explanation:

√5*45 [ √9 =3*3=3,

√25=5*5=5]

= √5*9*5

= √25*3

= 5*3

=15

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Answer 2

Answer: 15

Step-by-step explanation:

$⇝ \sqrt{5} \times \sqrt{45}$

$⇝ \sqrt{5 \times 5 \times 9}$

$⇝ \sqrt{5 \times 5 \times 3 \times 3}$

There are two 5 and two 3, hence 5 and 3 will be taken out of root.

$⇝5 \times 3 = 15$

Hence, $\sqrt{5} \times \sqrt{45}$ is equal to 15.

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