¼(8x-2)² - 4(2x-2)=13+4x(5+4x)

¼(8x-2)² - 4(2x-2)=13+4x(5+4x)= 1/4(64x²-32x+4)-8x+8=13+20x+16x² 16x²-8x+1-8x+8=13+20x+16x² 16x²-8x-8x-20x-16x²=13-1-8 -36x=4 /:(-36) x=-4/36 x=-1/9

1/4 (64x - 16x - 16x +4 ) -8x -8=13+20x -16x 1/4(64x -32x+4)-8x -8=13+20x -16x 1/4 ( 32x +4)-8x -8=13+20x -16x 6x -8x -8 = 13 +20x - 16x -2x -8 = 13+4x -2x -4x=13+8 -6x=21/-6 x = -21/6 x=3,5