Answer:
Final answer is .
Step-by-step explanation:
Given expression is
Now we need to find about what is product of both factors.
We see that both factors are in exponent form having equal base "x".
So we can apply formula:
Hence final answer is .
2-1 reversed is turning it around : 1-2 which equals -1 because there is one left over. B is your answer and hoped I helped!
Wait doesn’t it tell you how to solve it tho