The answer is x=-3 and y=13
Answer:
x = 30
Step-by-step explanation:

Hey there! :)
In the big square, the side length is 3, and in the small one, it's 1
Big to Small = 1/3
1/3 = 0.3333 = 0.3
Your answer is 0.3
Hope this helps :)
The expression ' one-half difference of a number cubed and one'. is written as \frac{1}{2}(x^3-1)