Answer:
(r^9-s^10) (r^18+r^9 s^10 + s^20)
Step-by-step explanation:
hope this helps :)
I hope this is the right answer and if it's not then my apologies.
And sorry it took so long.
Answer:
x = -3/28
Step-by-step explanation:
Start of by subtracting 3/7
7/14 - 6/14 = 1/14
-2/3x = 1/14
Divide -2/3, don't forget to reciprocate your fraction since you are dividing.
1/14 * -3/2 = -3/28
x = -3/28
ΔBED and Δ DEC are similar (AAA). Therefore we have the proportion:
<em>cross multiply</em>

Step-by-step explanation:
cos Acos B tan(A + B)=- sin A sin B cos Acos B tan A + tan B tan(A + B)=. 1 - tan A tan B. Divide top and bottom by cos A cos B. -. +. 1-. 8.
<h2>Missing: 8b+ | Must include: 8b+</h2>