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NCERT - Mathematics Exemplar

Exercise

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Q. 215.0( 2 Votes )

Out of the four o

Class 8th NCERT - Mathematics Exemplar 8. exponents and powers

Answer :

By laws of exponent,

x^m ÷ xⁿ = x^m-n

In this question,

m = 7

n = 12

∴x^m ÷ xⁿ = x^m-n

⇒ x⁷ ÷ x¹² = x^7-12

⇒ x⁷ ÷ x¹² = x^-5

Hence, for a non-zero integer x, x⁷ ÷ x¹² is equal to x^-5.

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