Question

1. Rozwiąż równanie:

c

Answer 1

a)

4-100x^2=0

100x^2=4

10x=2

x=0,2

c)

4x^2-121=0

4x^2=121

4x=11

x= 4/11

d) - popelniles blad przepisujac zadanie

9/49-81=0

a)

7x^2+42x=0

delta = 1764

x1=0

x2=-6

b)

9x^2+1/3x=0

delta=1/9

x1=0

x2=-(2/3)/9 =-18/3 =- 6

c) 36x^2=6x

36x^2-6x=0

delta = 36

x1=0

x2=12/36=1/3

d)

2x+18x^2=0

18x^2+2x=0

delta= 4

x1=0

x2=-1/9

e)

$-pierwiasterk

$2$x^2-$8$x=0

delta=8

x1=(-2$8$)/2=$8$

x2=0

 

f)

3x^2+$3$x=0

delta=3

x1=0

x2=-1