In the polynomial below, what number should replace the question mark to produce a difference of squares?
x² + ?X-49
A. O
B. 14
C. 49
OD.7

Kylie explained that (-4x+9)^2 will result in a difference of squares because (-4x+9)^2 (-4x+9)^2 =(-4x)^2+(9)^2=16x^2+81

Find the roots of the equation below. x^2 - 6 + 9 = 0

Savannah is painting a striped background for a mural on a wall that is 1515 yards long. she wants a total of 9696 stripes that are all the same width. which calculation should savannah use to decide how wide to make each stripe?