Решение
1) a³ - 8 = (a - 2)*(a² + 2a + 4)
2) m(n - 3) + 2(n - 3) = (n - 3)*(m + 2)
3) (3 - 2x)³ = 3³ - 3*3²*2x + 3*3*(2x)² - (2x)³ =
= 27 - 54x + 36x² - 8x³
4) 2(5 - y²)*(y² + 5) + (y² - 3)² - (4 - y²)*(y² + y - 1) =
= 50 - 2y⁴ + y⁴ - 6y² + 9 - 4y² - 4y + 4 + y⁴ + y³ - y² =
= 63 - 11y² + y³ - 4y = y³ - 11y² - 4y + 63
5) x² - 2yx - a(2y - x) = x(x - 2y) + a(x - 2y) = (x - 2y)*(a + x)
1,1*10^-1*3*10^-2=1,1*3*10^-3=3,3*10^-3=0,0033
A) a²+8a+16
б) a²-25
в) (2х)³-3*(2х)²*3+3*2х*3²-3³=8х³-12х²+54х-27
г)х³+8