1. x+9=(x-3)^2 2.(4x-6)^2=(x-4)(x-9) 3.(5x-2)(3-x)=-6(1-x)(1+x)

1. x+9=(x-3)^2 x+9 = (x-3)(x-3) x+9 = x²-3x-3x+6 x - x² +6x = 6 - 9 7x - x² = -3 2.(4x-6)^2=(x-4)(x-9) (4x-6)(4x-6) = (x-4)(x-9) 16x² - 24x - 24x +36 = x² - 9x -4x + 36 16x² - x² - 48x + 13x = 0 -35x = 0 |: (-35) x = 0 3.(5x-2)(3-x)=-6(1-x)(1+x) 15x-5x²-6+2x = -6(1 + x -x-x²) 17x - 5x² -6 = -6-6x+6x+6x² 17x - 5x² - 6x² = 0 x = 0