1. a square floor tile has an area of (x2 + 8x +16) in2. the side length of the tile is of the form cx + d, where c and d are whole numbers.
a. find the expression for the side length of the tile.
b. find the expression that represents the perimeter of the tile.
c. find the perimeter when x=8 inches.
2. explain how you know 25n2 - 20 is not a difference of squares.
3. explain how do you know x2 + 6x +6 is not a perfect square trinomial.

a net is a diagram that shows a “flattened” view of a solid. in a net, each face and base is shown with all of its dimensions. a net can also serve as a pattern to build a three-dimensional solid.

a pyramid is a three-dimensional object with a base that is a polygon and triangular faces that meet at one vertex.

" the net of a triangular pyramid consists of four triangles. the base here we are given of the pyramid is a equilateral   triangle, and the lateral faces are also triangles "

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.