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oovove
@oovove
August 2022
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срочно! решите уравнения!!
x(5-x)=0
3x=2x^2
x^2-3=0
-2x^2+x-3=0
x^2+3x-2=0
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Verified answer
1. х(5-х)=0
х=0 5-х=0
х=5
2. 3х=2х²
2х²-3х=0
х(2х-3)=0
х=0 2х-3=0
2х=3
х=1,5
3. х²-3=0
х²=3
х=±кореньиз3
4. -2х²+х-3=0
2х²-х+3=0
D=1-4×3×2=1-24=-23 <0 - корней нет
5. х²+3х-2=0
D=9+4×2=9+8=17
х1,2=(-3±кореньиз17)/2
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Answers & Comments
Verified answer
1. х(5-х)=0х=0 5-х=0
х=5
2. 3х=2х²
2х²-3х=0
х(2х-3)=0
х=0 2х-3=0
2х=3
х=1,5
3. х²-3=0
х²=3
х=±кореньиз3
4. -2х²+х-3=0
2х²-х+3=0
D=1-4×3×2=1-24=-23 <0 - корней нет
5. х²+3х-2=0
D=9+4×2=9+8=17
х1,2=(-3±кореньиз17)/2