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ICSE Class 9 Answered

If 3^x+1=9^x-3find the value of 2^1+x

 

Asked by atiqurrahman9369 | 04 Oct, 2020, 01:14: AM
Expert Answer
begin mathsize 16px style 3 to the power of straight x plus 1 end exponent equals space 9 to the power of straight x minus 3 end exponent
rightwards double arrow 3 to the power of straight x plus 1 end exponent equals space 3 to the power of 2 straight x minus 6 end exponent
rightwards double arrow straight x plus 1 equals space 2 straight x space minus space 6
rightwards double arrow space straight x space equals space 7
2 to the power of 1 plus straight x end exponent equals space 2 to the power of 1 plus 7 end exponent equals 2 to the power of 8 end style
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