Question

resolva as questões exponenciais:

a)5x+3 = 1
b)73x -9 = 7
c)9x - 4.3x+ 3 =0​

Answer 1

Resposta:

a) 5x= 1 - 3

5x= - 2

x= - 2

--

5

x= - 0,4

b) 73x = 7 + 9

73x = 16

x= 16

---

73

x= 0,21917808

c) 9x - 4.3x+3=0

4.7x + 3= 0

4.7x= - 3

x= - 30

----

47

x= - 0,638298