rozwiąż równania; POMOCY
a)9x do potęgi2 -4=0
b)x do potęgi2 =2x=0
c)6x-9=x do potęgi2
d)4x-4x do potęgi 2 =1
a) 9x² - 4 = 0
9x² = 4
x² = 4/9
x = 2/3 lub x = -2/3
b)
x² + 2x = 0
x(x + 2) = 0
x = 0 lub x = -2
c)
6x - 9 = x²
x² - 6x + 9 = 0
(x - 3)² = 0
x - 3 = 0
x = 3
d)
4x - 4x² = 1
4x² - 4x + 1 = 0
(2x - 1)² = 0
2x - 1 = 0
2x = 1
x = 1/2
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a) 9x² - 4 = 0
9x² = 4
x² = 4/9
x = 2/3 lub x = -2/3
b)
x² + 2x = 0
x(x + 2) = 0
x = 0 lub x = -2
c)
6x - 9 = x²
x² - 6x + 9 = 0
(x - 3)² = 0
x - 3 = 0
x = 3
d)
4x - 4x² = 1
4x² - 4x + 1 = 0
(2x - 1)² = 0
2x - 1 = 0
2x = 1
x = 1/2