Answer:
Step-by-step explanation:
In order to know the equivalent expression of the given above, all we need to do is to simplify it. So, for the exponents, what we need to do is just subtract.
The final answer would be 3/2xy^3. So the answer is option C. Hope this is the answer that you are looking for.
Answer:
3/20
Step-by-step explanation:
2x -10 = 30
add ten to both sides
2x = 40
divide by two
x = 20
Answer:
plug in -3 where any x is in the equation. I reccomend doing it in parenthesis just so things work out nicely
Step-by-step explanation:
![x^2-x^3\\(-3)^2-(-3)^3\\(-3*-3)-(-3*-3*-3)\\(9)-(-27)\\9+27\\36](https://tex.z-dn.net/?f=x%5E2-x%5E3%5C%5C%28-3%29%5E2-%28-3%29%5E3%5C%5C%28-3%2A-3%29-%28-3%2A-3%2A-3%29%5C%5C%289%29-%28-27%29%5C%5C9%2B27%5C%5C36)