Question

Find the value of x
${4}^{x \: } + {4}^{x + 1} = 80$
Please tell the answer I will mark your answer brainliest ​

Answer 1

4^x+4^x+1=80

if x=1

4+16=20

so xis not equal to 1

if x=2

4^2+4^2+1

=16+4^3

=16+64=80

so x=2