Factor completely: x^3 -16xi'll appreciate the !

First, we can factor an x out of this.

We're left with x(x^2 - 16)

We can use the difference of squares theorem here to factor this further.

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.