№1
1) = 2ab^3-2a^2b=2ab(b^2-a)
2) = -2p^2
№2
1) x^2 +5x - 4x - 20 = x2 - x -20
2) 18a^2 - 27ab + 4b^2
№3
1) x + 6x = 14
7x = 14
x = 2
2) 12 - x + 6 + x/4 = 6
48 - 4x + 24 +x = 24
48 - 3x = 0
48 = 3x
x = 16
№1
1) = 2ab^3-2a^2b=2ab(b^2-a)
2) = -2p^2
№2
1) x^2 +5x - 4x - 20 = x2 - x -20
2) 18a^2 - 27ab + 4b^2
№3
1) x + 6x = 14
7x = 14
x = 2
2) 12 - x + 6 + x/4 = 6
48 - 4x + 24 +x = 24
48 - 3x = 0
48 = 3x
x = 16