Y varies directly with the cube of X. When Y = 40, X = 2.

👇🏼Write Y in terms of X

👆🏼Find the value of Y when X = 5

👉🏼Find without using a calculator

👈🏼Expand and simplify (3x-1)²(x+2)

🖐🏼Solve the simultaneous equations: x²+y²=10 and x-y-2=0