Find the product of ​

=x2-4

Step-by-step explanation:

=(x+2)(x+−2)

=(x)(x)+(x)(−2)+(2)(x)+(2)(−2)

=x2−2x+2x−4

=x2−4

step-by-step explanation: h: (- 3, 6)

m: (1, - 2)

o: (7, 6)

r: (- 9, - 2)

midpoint of hm: (- 1, 2)

midpoint of or: (- 1, 2)

therefore, b is the midpoint of both diagonals bisect each other !

to prove the diagonals are perpendicular, show that the product of the slopes = - 1

29.5977692753

step-by-step explanation: