2^2x+2 *5^x-1=8^x*5^2x

The solution will be "x = 2 and x = -1".

Step-by-step explanation:

The given equation is:

⇒  

On solving "", we get

⇒  

As we know, if the base are same then their powers will be added together.

⇒   ...(equation 1)

⇒   ...(equation 2)

From equation 1, we get

⇒  

⇒  

From equation 2, we get

⇒  

⇒  

So that the correct answer will be "x = 2" and "x = -1".

1. is 4 and 2. is 3

step-by-step explanation:

so if you look at the first one you see that 1 is to 4 and 2 is to 8 and so on, so you can see for every 1 there is a times 4 so if it were 3 then it would be 3*4 and it is 12

for number 2 it is 3 because 1 is to 3 and 2 is to 6 so for every 1 there is 3 so if it were 3 then there would be 3*3 = 9