how to solve e^6x*e^x=e^21

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Guest Feb 19, 2015

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Best Answer

e^6x · e^x = e²¹

Add exponent: 6x + x = 7x

e^7x = e²¹

The only way that the left side can equal the right side, is for 7x = 21 ---> x = 3

geno3141 Feb 19, 2015

geno3141 · Answer 1 · 2015-02-19T01:59:03

e^6x · e^x = e²¹

Add exponent: 6x + x = 7x

e^7x = e²¹

The only way that the left side can equal the right side, is for 7x = 21 ---> x = 3