Question

2 ^x +2 ^x+3 =144

Answer 1

2 ^x +2 ^x+3 =144

=>2^x+2^x.2³=144

=>2^x.(1+2³)=144

=>2^x.9=144

=>2^x=144:9

=>2^x=16

=>2^x=2⁴

=>x=4

Answer 2

2^x+2^x+3=144

2^x+2^x.2³=144

2^x(1+2³)=144

2^x.9=144

2^x=144:9

2^x=16

2^x=2⁴

=>x=4

Answer 3

Làm nhầm thưa Phạm Tuấn Kiệt