Question

if 5×4^x-2=20,then x is equal to??
a.0 b.1 c.2 d.1​

Answer 1

Step-by-step explanation:

5×4^x-2=20,

or 4^ x-2 = 20/5

or 4^ x-2 = 4

or 4^ x-2 = 4¹

so x-2 =1

or x = 3