Answer: x^9+3x^8+7x^7
Step-by-step explanation:
the ^ mean the exponent
21 V³ 15- 9V³15
= (21-9)V³15
= 12V³15
Answer:
x = 44°
The sum of the three angles is 180°.
So, x + x + 5 + 2x -1 = 180
4x + 4 = 180
4x = 176
n=16 :)
