Answer:
a) x = 5
b) x = 4
Step-by-step explanation:
a) x = 5
You can get this with a calculator if you need by using the log function.
[tex]log_{2} 32 = x[/tex]
x = 5
b) x = 4
According to the product rule of exponents: [tex]a^{x} * a^{y} = a^{x + y}[/tex]
So, x + 11 = 15 --> x = 4
