Question

a student is solving the equation 81x^x-1=3^x+2.

step 1: 81^x-1=3^x+2

step 2: (3^4)^x-1=3^x+2

step 3:3^4x-4=3^x+2


which equation is the next step?

a.4x-4=-(x+2)
b.x-1=x+2
c.4x-4=x+2
d.4(x-1)=3(x+2)

Answer 1

I think the answer is c
hope this would help you