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CBSE Class 8 Answered

If 2^3 x 2^n =2^7 then n=
Asked by s6645trk | 25 Mar, 2021, 11:14: AM
answered-by-expert Expert Answer
begin mathsize 16px style 2 cubed space straight x space 2 to the power of straight n equals 2 to the power of 7 rightwards double arrow 2 to the power of 3 plus straight n end exponent equals 2 to the power of 7 space space........ space space space space straight a to the power of straight m cross times straight a to the power of straight n equals straight a to the power of straight m plus straight n end exponent Since space base space are space same comma space we space get rightwards double arrow 3 plus straight n space equals space 7 rightwards double arrow space space space space space space straight n space equals space 4 end style
Answered by Yasmeen Khan | 25 Mar, 2021, 11:51: AM

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