proszę pomuscie zad z matmy daje naj

(x+2)² = x² x² + 4x+ 4 = x² 4x+4=0 4x=-4 x=-1 (x+4)² = x(6+x) x² + 8x + 16 = 6x+x² 8x + 16 = 6x 2x = -16 x= -8   (x+1)² = x² - 1 x² + 2x + 1 = x² -1 2x+1 = -1 2x= -2 x=-1 (3x+2)² = x(-2+9x) 9x² + 12x + 4 = -2x+9x² 12x + 4 = -2x 14x = -4 x= -4/14 = -2/7