rozwiaz 2x = 3
-5x - 10 = 0
7 (x - 3) do potegi 3 = 0
5x (x+5) = 0
(x +1) do potegi 2 = 0
x do potegi 2 = 25
(x +8) (x - 9) = 0
90 +x przez 25 = 4 prosze ja nic nie kumam z maty !!!
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2x = 3 |:2
x=3/2
---------------
-5x - 10 = 0
-5x=10 |:(-5)
x=-2
---------------
7 (x - 3)³ = 0
x-3=0
x=3 - pierwiastek potrójny
---------------
5x (x+5) = 0
5x=0 lub x+5=0
x=0 x=-5
---------------
(x +1)²= 0
x+1=0
x=-1 - pierwiastek podwójny
---------------
(x +8) (x - 9) = 0
x+8=0 lub x-9=0
x=-8 x=9
---------------
x²= 25
x²-25=0
(x-5)(x+5)=0
x=5 lub x=-5
---------------
I
[90 + x]/25=4 |*25
90+x=100
x=10
II
90+ x/25=4 |*25
2250 +x =100
x=-2150
2x =3 /:2
x=3/2
-5x-10 = 0
-5x = 10 /:(-5)
x = -2
7(x-3)³ = 0
x - 3 = 0
x = 3 (pierwiastek trzykrotny)
5x (x+5 )= 0
5x = 0 U X+5 = 0
x = 0 x = -5
(x+1)² = 0
x+1 = 0
x = -1 (pierwiastek dwukrotny)
x² =25
x = ± 5
(x+8)(x-9) =0
x = -8 U x = 9
90 + x/25 =4 /* 25
2250 + x = 100
x = -2150