Complete the square by adding the square of half of four to both sides (4)
x^2+y^2-4y+4=4
x^2+(y-2)^2=4
Step-by-step explanation:
-3x + 6y = -27 |-1×|
3x - 6y = 27 |1×|
3x - 6y = 27
3x - 6y = 27
Two equations are similar.
X,Y element R
Firstly, multiply both sides by S: 
Next, divide both sides by X, and <u>your answer will be
</u>
10y⁵ + 30y³ - 15y =
5y * 2y⁴ + 5y * 6y² + 5y * (-3) =
5y (2y⁴ + 6y² - 3)