The polynomial x3 + 64 is an example of a
-sum of cubes
-difference of cubes
-difference of squares
-perfect-square trinomial

Because the value of x is raised to the power of 3, x^3 is a cubed number.

and 64 is 4^3

This makes the polynomial a sum of cubes.

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.

the smallest possible measurement of the width is 14 feet

step-by-step explanation:

let's assume length of parallelogram is 'l'

width of parallelogram is 'w'

the perimeter of a parallelogram must be no less than 40 feet

so, we get

we are given

length of parallelogram is 6 feet

so,

l=6

we can plug it

now, we can solve for w

subtract both sides by 12

divide both sides by 2

and we get

so,

the smallest possible measurement of the width is 14 feet