Answer:
x = 20
y = 8
In a parallelogram, there are always two pairs of equal sides, where in this question:
Side CD = Side BA
Side DA = Side CB
Use this to find x and y.
CD = BA
15 = x - 5
x = 20 (rearranging to find x)
DA = CB
y = 8
Answer:
x^2−64
Step-by-step explanation:
(x+8)(x−8)
=(x+8)(x+−8)
=(x)(x)+(x)(−8)+(8)(x)+(8)(−8)
=x^2−8x+8x−64
=x^2−64
Answer:7x+28
Step-by-step explanation:
7×x = 7x
7×4 = 28
