Answer :
6 - 5x = 6(4)(x - 1) - 5x(4)(x - 1) = 24x - 24 = 20x² - 20x = 20x² - 4x - 24
x - 1 4 4(x - 1) 4(x - 1) 4x - 4 4x - 4 4x - 4
x - 1 4 4(x - 1) 4(x - 1) 4x - 4 4x - 4 4x - 4