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RingeEr
@RingeEr
August 2022
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(х+2)(х-8)=2х^2+6х+11
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hgfddsa78
Х^2-8х+2х-16=2х^2+х+11
х^2-8х+2х-16-2х^2-х-11=0
х^2-7х-27=0
D=b^2-4ac
D=49+108=157
x1/2= 7+-157/2
х1=7-157/2=150/2=75
х2=7+157/2=164/2=82
Ответ: 75;82
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hgfddsa78
х^2-8х+2х-16=2х^2+6х+11
х^2-8х+2х-16-2х^2-6х-11=0
х^2-12х-27=0
D=b^2-4ac
D=49+48=97
x1/2= 7+-97/2
х1=7-97/2=90/2=45
х2=7+97/2=102/2=51
Ответ: 45;51.
hgfddsa78
Сразу 6 перед х не увидела.
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Answers & Comments
х^2-8х+2х-16-2х^2-х-11=0
х^2-7х-27=0
D=b^2-4ac
D=49+108=157
x1/2= 7+-157/2
х1=7-157/2=150/2=75
х2=7+157/2=164/2=82
Ответ: 75;82
х^2-8х+2х-16-2х^2-6х-11=0
х^2-12х-27=0
D=b^2-4ac
D=49+48=97
x1/2= 7+-97/2
х1=7-97/2=90/2=45
х2=7+97/2=102/2=51
Ответ: 45;51.