Question

fatore

a 9x²-18x

b 5x³-10x²=20x

c Ax-by+3x-3y

d 9x+18y+2x+4y

Answer 1

  a)  9x²-18x = 9x(x-2)
 
 b )  5x³-10x²=20x        
       5x³ - 10x² - 20x = 0
       5x(x² - 2x - 4)=0

c )  Ax-by+3x-3y = x(A+3) - y(b+3)

d )  9x+18y+2x+4y = x(9+2) +2y(9+2) = (x+2y)(9+2) = (x+2y).11