Question

Tìm x

5^x+3 -13=612

Answer 1

5^x+3 -13=612

5^x+3 =612+13

5^x+3 =625

5^x+3 =5⁴

=>x+3=4

x=4-3

x=1

Answer 2

5^x+3-13=612

=> 5^x+3=612+13

=> 5^x+3=625

=> 5^x+3=5⁴

=> x+3=4

=> x=4-3

=> x=1