1)Rożwiąż równanie kwadratowe a)x²+4x+4=(x+2)(3x-4) b)16-(3x-1)²=0 c)9x²-(2x-1)²=0 d)4x²=(1-x)² e)(2x+1)²=(4x+5)²   2)Rożważ równanie kwadratowe a)4-¼x²-3x=x²+2x+9 b)(x-1)(x+2)=(2x-3)(x+4)   daj naj

1. a) x^2  + 4x + 4 = 3x^2 -4x +6x - 8 -2x^2 + 2x +12 = 0 x^2 - x - 6 = 0 delta = 25 x = 3           v             x = - 2   b)16 - ( 9x^2 - 6x + 1 ) = 0 -9x^2 - 6x + 15 = 0 3x^2  + 2x - 5 = 0 delta = 64 x = 2         v        x = -10/6   c)9x^2 - 4x^2 + 4x - 1 = 0 5x^2 + 4x - 1 = 0 delta = 36 x = 0,2         v               x = -1   d) 4x^2 = 1 - 2x + x^2 3x^2 + 2x - 1 = 0 delta = 16 x = 2/6        v            x = -1   e) 4x^2 + 4x + 1 = 16x^2 + 40x + 25 12x^2 + 36x + 24 = 0 x^2 + 3x + 2 = 0 delta = 1 x = -1      v           x = -2   2) a) 5/4 x^2 + 5x + 5 = 0 5x^2 + 20x + 20 = 0 x^2 + 4x + 4 = 0 ( x + 2 ) ^2  =  0 x = -2   b)x^2 + 2x - x -2 = 2x^2 + 8x - 3x - 12 x^2 + 4x - 10 = 0 delta = 56 x = pierwiastek z 14 - 2        v          x = - pierwiastek z 14 - 2