a) (3x - 2)² - 5x - (3x + 2)(3x - 2) < (2 - 3x)² - 9x² + 4 b) 2(x - 3)² - ½ ≥ (2x-3)(2x+3) -x 2

a) (3x-2)²-5x-(3x+2)(3x-2)<(2-3x)²-9x²+4 9x²-12x+4-5x-9x²-6x+6x-4<4-12x+9x²-9x²+4 -12x-5x<8-12x -12x-5x+12x<8 -5x<8 /:(-5) x> - 1 3/5 b) 2(x-3)²-½≥(2x-3)(2x+3)-x 2(x²-6x+9)-½≥4x²+6x-6x-9-x 2x²-12x+18-½≥4x²-9-x 2x²-12x-4x²+x≥-9-18+½ -2x²-11x≥-26,5