Basically expand
use FOIL (a way to remember distributive property)
first outer inner last
that is th eorder to multiply them
First: x times 2x=2x²
Outer: x tmes 9=9x
Inner: -8 times 2=-16x
last: -8 times 9=-72
add them
2x²+9x-16x-72
2x²-7x-72
Answer:
maybe 223 degrees
Step-by-step explanation:
If q = -10
Then:
q^2 = qxq
q^2 = (-10)(-10)
q^2 = 100
