Odpowiedzi

2010-02-17T18:37:26+01:00
Zad 1.
36x²= 6x
6*6*x*x=6*x
36x=6 I :36
x=6/36=1/6

zad 2.
a)x² + 64 = 16x
x²-16x+64=0= (x-8)²
x=8


b)24x - x² = 144
x²-24x+144=0= (x-12)²
x=12
2010-02-17T18:37:32+01:00
1.36x2-6x=0
6x2-x=0
x(6x-1)=0
x=0 lub x=1/6
2.a)
x2+64-16x=0
(x-8)2 =0 x=8
b)
24x-x2=144
24x-x2-144=0
-(x2-24x+144)=0
-(x-12)2=0 x=12