<h3>
Answer: 116.2°</h3>
Work Shown:

The first equation is one of the three variations for the Law of Cosines.
Make sure your calculator is in degree mode.
If 2a = -10, that means a = -5 Because 2(-5) makes -10.
Thus, -6(-5) = 30 #
Therefore, -6a = 30
Answer:
use identity (a - b) ^3 = a^3 - b^3 - 3ab (a - b)
here, a = x ^2
b = -1
= (x^2)^3 - (-1)^3 - 3 * x ^2 * -1 ( x^2 - (-1) )
x^6+ 3 x^2 ( x ^2 + 1)
I think this is the answer
Hello,
g(x)=x²-6x+14=x²-2*3x+9+14-9=(x-3)²+5
h=3, k=5