rozwiąż układ równań metodą algebraiczną
(x-2)^2-2(x-2y)=1-(3-x)(3+x)
2x+y=4
Daje najj Pillnee
x² - 4x + 4 - 2x + 4y = 1 - (9 - x²)
2x + y = 4
x² - 6x + 4 + 4y = 1 - 9 + x²
-6x + 4y = -8 - 4
2x + y = 4 / * 3
-6x + 4y = -12
6x + 3y = 12
--------------------
7y = 0
y = 0
2x + 0 = 4
2x = 4
x = 2
odp.
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
(x-2)^2-2(x-2y)=1-(3-x)(3+x)
2x+y=4
x² - 4x + 4 - 2x + 4y = 1 - (9 - x²)
2x + y = 4
x² - 6x + 4 + 4y = 1 - 9 + x²
2x + y = 4
-6x + 4y = -8 - 4
2x + y = 4 / * 3
-6x + 4y = -12
6x + 3y = 12
--------------------
7y = 0
y = 0
2x + y = 4
2x + 0 = 4
2x = 4
x = 2
odp.
x = 2
y = 0