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Vladoooko
@Vladoooko
July 2022
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корень 1.25-x корень 1.25+x = корень 0.5-0.5x
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sedinalana
Verified answer
ОДЗ
1,25-x≥0⇒x≤1,25
1,25+x≥0⇒x≥-1,25
0,5-2x≥0⇒2x≤0,5⇒x≤1,25
x∈[-1,25;1,25
(1,25-x)(1,25+x)=0,5-0,5x
-25/16+x²+1/2-x/2=0
16x²-8x-17=0
D=64+1088=1152
√D=24√2
x1=(8-24√2)/32=0,25-0,75√2
x2=0,25+0,75√2
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Answers & Comments
Verified answer
ОДЗ1,25-x≥0⇒x≤1,25
1,25+x≥0⇒x≥-1,25
0,5-2x≥0⇒2x≤0,5⇒x≤1,25
x∈[-1,25;1,25
(1,25-x)(1,25+x)=0,5-0,5x
-25/16+x²+1/2-x/2=0
16x²-8x-17=0
D=64+1088=1152
√D=24√2
x1=(8-24√2)/32=0,25-0,75√2
x2=0,25+0,75√2