Answered

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Which of the following is equivalent to the product below?
Square root 3 square root 21

I NEED HELP ILL GIVE BRAINLIEST

Sagot :

ajinems

The equivalent of the products given = 3√7

Simplifying square roots

A perfect square root is said to be a number that gives rise to an integer when it's square root is carried out. Examples are √16, √9 which is 4 and 3 respectively.

√3 × √21

But √a ×√b = √ a×b

Find the prime factors which when multiplied would give 21 = 3 and 7.

Therefore,

[tex] \sqrt{3 \times 3 \times 7} [/tex]

[tex] \sqrt{9 \times 7} [/tex]

[tex] 3 \sqrt{7} [/tex]

Therefore, the equivalent of the products of √3 × √21 =

3√7

Learn more about perfect square roots here:

https://brainly.com/question/3617398

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