1) x(x+3)=0
x=0 или х+3=0
x1=0 x2=-3
2)x~2=64
x1=8 x2=-8
3) x~2=81
x1=9 x2=-9
4) x(x-8)=0
x=0 или 8-x=0
x1=0 x2=8
5) x~2+36=0
x~2=36
x1=6 x2=-6
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Answers & Comments
1) x(x+3)=0
x=0 или х+3=0
x1=0 x2=-3
2)x~2=64
x1=8 x2=-8
3) x~2=81
x1=9 x2=-9
4) x(x-8)=0
x=0 или 8-x=0
x1=0 x2=8
5) x~2+36=0
x~2=36
x1=6 x2=-6