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8. exponents and powers
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Q177 of 196 Page 249

Find x.

As we know that, any number with power zero equals to 1, i.e a0=1,


where a = any number


Therefore, expressing the given equation, in exponent format,



As the bases are same so the exponents can be equated,


⇒ x – 7 = 0


⇒ x = 7


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177

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23x = 82x+1

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5x+ 5x–1 = 750

Questions · 196
8. exponents and powers
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