1а) 4y3+15y4y^3+15y4y3+15y-17y−y317y-y^317y−y3 = 4y^3 + 15y - 17y + y^3 = 5y^3 - 2y1б) 2a3a−в+43a-в+43a−в+4 = 6a^2 - 2аb + 8a
2а) 2*ав-в^2 = 2ab - b^22б) 2х^3+4x^6 = 2x^31+2x31 + 2x^31+2x3
1а) 4y3+15y4y^3+15y4y3+15y-17y−y317y-y^317y−y3 = 4y^3 + 15y - 17y + y^3 = 5y^3 - 2y
1б) 2a3a−в+43a-в+43a−в+4 = 6a^2 - 2аb + 8a
2а) 2*ав-в^2 = 2ab - b^2
2б) 2х^3+4x^6 = 2x^31+2x31 + 2x^31+2x3