#4-6 -----------------------------. Created by Yumbila. algebra-ru

#4-6 -----------------------------...

July 2022 1 4 Report

#4-6
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sedinalana 4
1)3x(x-4)=0
x1=0
x2=4
2)x(49x²+14x+1)=0
x(7x+1)²=0
x1=0
x2=-1/7
3)x²(x-5)-(x-5)=0
(x-5)(x²-1)=0
(x-5)(x-1)(x+1)=0
x1=5
x2=1
x3=-1
5
3^6+5³=729+125=854
854:14=61
6
a²+b²=(a-b)²+2ab=36+10=46
(a+b)²=a²+b²+2ab=46+10=56

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