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SshadoW
@SshadoW
July 2022
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(5-8x)(4x-3)= (8x-5 )².......................решите уравнение
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kseniyagavrilova
(5-8х)(4х-3)=(8х-5)²
20х-15-32х²+24х=64х²-80х+25
20х-15-32х²+24х-64х²+80х-25=0
-96х²+124х-40=0
- Делим выражение на (-4)
24х²-31х+10=0
Д=961-960
Д=1
1х=(31+1):48
1х≈0.67
2х=(31-1):48
2х=0,625
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Answers & Comments
20х-15-32х²+24х=64х²-80х+25
20х-15-32х²+24х-64х²+80х-25=0
-96х²+124х-40=0 - Делим выражение на (-4)
24х²-31х+10=0
Д=961-960
Д=1
1х=(31+1):48
1х≈0.67
2х=(31-1):48
2х=0,625