Answer:
Step-by-step explanation:
p^2-4p-21=0
Where you see (x^2 + 6) you put in p.
p 2 - 21 = 4 ( x 2 + 6 )
p 2 - 21 = 4p
p 2 - 4p - 21 = 0
:)
(-1.5,0) (0,0.5)
I graphed it
gfdddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd
180°-100°= 80°
x=80°
hope this is enough
the dimensions would b 10 10 and 10
(5,-3)
