Y(Y-4)=Y^2-4Y ответ: Y^2-4Y
1)=0.45 m^3 x^5 y^5
2)=(2/7a)²-(3b²)²=4/49a²-9b^4
3)=5a³x(3x+a) :(-5a³x)=-3x-a
1. X² = 49
X = +-7
2.X² = -36
X ∈ ∅
3. X = 0
4. X² = 144
X = +- 12
5. [X = 0
[X = -13
6. X = 0
7. X = +-√15
8. X² = +-√13
9.X = +-6
17x + 29 = 112x - 28
17x - 112x = -28 + 29
- 95x = 1
x = - 1/95