Which shows a difference of squares?
10y2-4x2
1672-x2
8x² - 40x+25
64x2-48x+9

8x² - 40x+25

Step-by-step explanation:

it's not completely solved but you can use the difference of squares to solve.

so a parallelogram is just like a square base times height. multiply 40 and 39 to get 1560 inches.

a triangle is base times height divided by two. so multiply 7.9 and 5 and then divide it by 2 to get 19.75inches.

the kite can be split into two separate triangles and added together to get the total area. 30 x 4 /2 which equals 60. make sure to double it for the two triangles making 120.

step-by-step explanation: the answer for wha if rt is 10 centimeters long, and wha is st? it’s 6