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# If a and B Are Distinct Primes Such that Root3 (A^6b^-4)=A^Xb^(2y), Find X and Y. - Mathematics

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Sum

If a and b are distinct primes such that root3 (a^6b^-4)=a^xb^(2y), find x and y.

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#### Solution

Given root3 (a^6b^-4)=a^xb^(2y)

rArr(a^6b^-4)^(1/3)=a^xb^(2y)

rArra^(6xx1/3)b^(-4xx1/3)=a^xb^(2y)

rArra^2b^(-4/3)=a^xb^(2y)

⇒ x = 2 and y = -2/3

Concept: Laws of Exponents for Real Numbers
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#### APPEARS IN

RD Sharma Mathematics for Class 9
Chapter 2 Exponents of Real Numbers
Exercise 2.2 | Q 17 | Page 26

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