Question

2 elevado x+4-2^x+2+2^x-1=25

Answer 1

2^x+4 -2^x+2 +2^x-1 = 25

2^x .2⁴ -2^x.2² +2^x .2-¹=25

2^x.(2⁴-2²+2-¹)=25

2^x.(16-4+1/2)= 25

2^x.(12+1/2)=25

2^x.(24+1/2)=25

2^x. 25/2= 25

2^x.25= 25.2

2^x .25= 50

2^x= 50/25

2^x= 2¹

x=1

S={ 1 }