Question

1+2^x=8 solve for x. Round your answer to 3 decimal places

Answer 1

Answer:

2.807

Step-by-step explanation:

$1+2^{x} =8\\2^{x}=8-1\\2^{x}=7\\log_{2}(2^{x})=log_{2}(7)\\\\NOTE: log_{a}(a^{x})=x\\\\x=log_{2}(7)\\\\x=2.807$