Factoriser ceci :
A = 5x² - 3x²B = (x-1)²-3(x-1)C = (2x+1)(3x-4)(+5)(2x+1)
aidez moi
A = 5x² - 3x²A = 2x²
B = (x-1)²-3(x-1)B = (x-1) (x-1-3) = (x-1)(x-4)
C = (2x+1)(3x-4)(+5)(2x+1)C = (2x+1) (3x-4+5) = (2x+1)(3x+1)