Question

find the value of x.please say the answer

Answer 1

${2}^{4} \times {8}^{x + 2} = {2}^{4} \\ {2}^{4 } \times {2}^{3(x + 2 )} = {2}^{4} \\ {2}^{3x + 10} = {2}^{4} \\ \\ by \: compairing \\ 3x + 10 = 4 \\ 3x = - 6 \\ x = - 2$
hope it will help you.

Answer 2

as 8= 2 power 3
16= 2 power 4
${2}^{4} + {2}^{3x + 6} = {2}^{4}$
then
$4 + 3x + 6 = 4$
as bases are same