Represent the polynomial x2 – 16 geometrically using algebra tiles. The number of zero pairs that will be added to the board is
.

The equivalent factored form of x2 – 16 is
.

Points j and k plotted on the coordinate grid are two vertices of rectangle jklm rectangle jklm has an area of 7 square units point j is located at 2,1 and point k is located at -5,1 each vertex of the rectangle is located at a point that has integer coordinates. what is the perimeter of rectangle jklm? (need answer asap)