Question

write the rationalising factor of 1 upon root 7 minus root 5​

Answer 1

Given
2(3√5)

Prime factorization of 125 = 5 × 5 × 5

So, 3√125 = 3√5 × 5 × 5 = 5

Now, 2(3√5) × 3√25 = (3√5 × 25) =2( 3√125) = 10

Thus, when2( 3√5) is multiplied by 3√25, we obtain the rational number 10

Therefore, the rationalizing factor of2( 3√5) is 3√25

Answer 2

Answer:

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