Question

resolva as equações esponenciais:A)2^x=64 B)2^×=128 C)2^×=1/16 D)3^×=243

Answer 1

a) 2^x= 64
2^x=2^6
x=6

b) 2^x= 128
2^x=2^7
x=7

c) 2^x= 1/16
2^x=1/2⁴
2^x= 2-⁴
x=-4

d) 3^x= 243
3^x= 3^5
x=5