zad.1 Rozwiąż równanie c) (6+[latex] frac{1}{3} x[/latex]) (-[latex] frac{1}{3} x[/latex]+6) + ([latex] frac{1}{3} x[/latex] - 4)[latex] ^{2} [/latex] = 4 d) ( -4x-3) (4x-3) +8(1-[latex] sqrt{2}x [/latex] )[latex] ^{2} [/latex] = 1

c) (6+1/3x)(6 -1/3x) +( 1/3x-4)²=4 36 - ¹/₉x²  + ¹/₉x² -⁸/₃x +16 =4 52 -⁸/₃ x =4 /·3 156 -8x =12 /-156 -8x = -144 /: (-8) x= 18 d) (--4x -3)(4x-3) +8(1-√2x)²=1 -(4x+3)(4x-3) +8(1- 2√2x +2x²)=1 -(16x² -9) +8 -16√2x +16x² =1 -16x² +9 +8 -16√2x +16x² =1 17 -16√2x =1 /-17 -16√2x = -16 /:(-16) √2x =1/:√2 x= 1/√2 ·√2/√2 x= √2/2