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Express 9^(3x+1) in the form 3^y, giving "y" in the form "ax+b" where "a" and "b" are constants.

9= 3² so 9^3x+1= 3^2(3x+1)= 3^6x+2

y= 6x+2 where a=6 and b=2

Answered by Laura B. • Maths tutor

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