Step-by-step explanation:
Make sure to see the photo I tried to explain every part there
Answer:
The second one is the best answer to your question
If x=width, then the equation would be:
x(x+10)=20,000
The length is 10 meters longer than the width(x), so the length is x+10.
To get the area(20,000) you multiply width by length, hence x(x+10).
Hope this helps.