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प्रश्न
Using laws of exponents, simplify and write the answer in exponential form:
7x × 72
योग
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उत्तर
7x + 72 = 7x + 2 ...(∵ am × an = am + n)
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अध्याय 11: Exponents and Powers - EXERCISE 11.2 [पृष्ठ १८१]
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