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(-2)31×(-2)13=(-2)-. - Mathematics

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Question

`(-2)^31 xx (-2)^13 = (-2)^-`.

Fill in the Blanks

Solution

(–2)31 × (–2)13 = `(-2)^bb(underline44)`.

Explanation:

Here, (–2)31 × (–2)13 = (–2)31+13  ......[∵ am × an = am+n]

= (–2)44

∴ (–2)31 × (–2)13 = (–2)44

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Chapter 11: Exponents and Powers - Exercise [Page 340]

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NCERT Exemplar Mathematics [English] Class 7
Chapter 11 Exponents and Powers
Exercise | Q 23. | Page 340

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