Neato
um
requires some trial and error
erm
ah hah
what 2 numbers multiply to get 16 and add to get -8
-4 and -4
(x-4y)(x-4y)
(x-4y)²
Answer:
<em>- 4</em>
Step-by-step explanation:
( 3 - r ) / ( 1 + 5) = 7/6
=
⇒ 3 - r = 7 ⇒ r = <em>- 4</em>
Because the cos theta < 0 then theta must be an obtuse angle
so a^2 + b^2 < a^2
C