Question

Разложите на множители: а) 24а^4х - 6b^2х - 12а^4y + 3b^2y б) 36n - 2m^3 +18m - 4m^2n

Answer 1

а) (24a^4x - 12a^4y) + (3b^2y - 6b^2x) = 12a^4*(2x - y) - 3b^2*(2x - y) = (12a^4 - 3b^2)*(2x - y)

 

b) (36n - 4m^2n) + (18m -2m^3) = 4n*(9 - m^2) + 2m*(9 - m^2) = (4n - 2m)*(9 - m^2) = (4n - 2m)*(3 - m)*(3+m)