Question 349356
volume = w*h*l


volume = (12-2x)^3


volume = (x+y)(x+y)(x+y)


V = xxx+xxy+xyx+xyy+yxx+yxy+yyx+yyy


V = xxx+3xxy+3xyy+yyy


V = 12(12)(12)+3(12)(12)(-2x)+3(12)(-2x)(-2x…


V = 1728-864x+144x^2-8x^3


area = 5(12-2x)^2


area = 5(144-48x+4x^2)


area = 720-240x+20x^2