= = - 34 - 12
x=y=−34−12
{ = - 34 - 12 = - 34 - 12
{x=−34−12y=−34−12
{ = - 46 = - 46
{x=−46y=−46
( , ) = ( - 46 , - 46 )
(x,y)=(−46,−46)
- 46 = - 46 = - 34 - 12
−46=−46=−34−12
- 46 = - 46 =- 46
−46=−46=−46
( , ) = ( - 46 , - 46 )
Номер 144:
1) 11m²-11=11(m²-1)=11(m-1)(m+1)
2) 6a³-6a=6a(a²-1)=6a(a-1)(a+1)
3) 5x³-5xy²=5x(x²-y²)=5x(x-y)(x+y)
4) 8a²b²-72a²c²=8a²(b²-9c²)=8a²(b-3c)(b+3c)
5) 2x²+24xy+72y²=2(x²+12xy+36)=2(x+6)²
6) -8a⁵+8a³-2a=-2a(4a⁴-4a²+1)=-2a(2a²-1)