2a²b²-6ab²+2a²b==2ab(ab-3b+a)
3a³m+9a²m-am²=am(3a+9a-m)
(x+1)+x(x+1)=(x+1)(1+x)=(x+1)²
m²(n+1)+2m(n+1)=(n+1)(m²+2m)=m(n+1)(m+2)
√10+3х-х²
10+3х-х² ≥ 0
10+3х-х² = 0x^2 - 3x - 10 = 0
D = 9 + 40 = 49
x1 = (3 + 7)/2 = 10/2 = 5
x2 = (3 - 7)/2 = -4/2 = -2
____-2///////5____
x∈[-2; 5]
Есть график косинус синус