Q22 of 196 Page 249

Out of the four options, only one is correct. Write the correct answer.

For a non-zero integer x, (x4)-3 is equal to

By laws of exponent,


(xm)n = xmn


In this question,


m = 4


n = -3


∴ (xm)n = xmn


⇒ (x4)-3 = x4×-3


⇒ (x4)-3 = x-12


Hence, for a non-zero integer x, (x4)-3 is equal to x-12.

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