veryone ;-; idk which one is correct so yeah...
Richard simplified an expression in three steps, as shown below:
Which is the first incorrect step and why?
Step 1: all the exponents are multiplied by 3
Step 2: the exponents in the denominator are multiplied
Step 3: the exponents of the same base are subtracted during division
Step 3: the exponents of the same base are added during division