Ответ:
Объяснение:
1. x= -= 8. 3 + 11х = 0 14. 9=49
2. 2 = 18 х(3х + 11) =0 х= =
= 18/2=9 х=0 или 3х+11 =0 15. 36= - 121
х = = 3 3х = -11 х = = -
3. х(х+5) = 0 х =
х = 0 или х+5 =0 9. 16 =81
х = -5 х = =
4. х = 0 10. 2 = 50
5. х(2х-9) =0 х = == 5
х=0 или 2х-9 =0 11. х=0
2х = 9 12. х(4х-11)=0
х = 4.5 х=0 или 4х-11=0
6. х(х+18) =0 4х=11
х = 0 или х+18=0 х=
х=-18 13. =
7. =5 =
х= х= =
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Answers & Comments
Ответ:
Объяснение:
1. x= -
=
8. 3
+ 11х = 0 14. 9
=49
2. 2
= 18 х(3х + 11) =0 х=
=![\frac{7}{3} \frac{7}{3}](https://tex.z-dn.net/?f=%5Cfrac%7B7%7D%7B3%7D)
х =
= 3 3х = -11 х =
= - ![\frac{11}{6} \frac{11}{6}](https://tex.z-dn.net/?f=%5Cfrac%7B11%7D%7B6%7D)
3. х(х+5) = 0 х =![-\frac{11}{3} -\frac{11}{3}](https://tex.z-dn.net/?f=-%5Cfrac%7B11%7D%7B3%7D)
х = 0 или х+5 =0 9. 16
=81
х = -5 х =
= ![\frac{9}{4} \frac{9}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B9%7D%7B4%7D)
4. х = 0 10. 2
= 50
5. х(2х-9) =0 х =
=
= 5
х=0 или 2х-9 =0 11. х=0
2х = 9 12. х(4х-11)=0
х = 4.5 х=0 или 4х-11=0
6. х(х+18) =0 4х=11
х = 0 или х+18=0 х=![\frac{11}{4} \frac{11}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B11%7D%7B4%7D)
х=-18 13.![\frac{3}{5} \frac{3}{5}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B5%7D)
= ![\frac{5}{3} \frac{5}{3}](https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7B3%7D)
7.
=5
= ![\frac{25}{9} \frac{25}{9}](https://tex.z-dn.net/?f=%5Cfrac%7B25%7D%7B9%7D)
х=
х=
=![\frac{5}{3} \frac{5}{3}](https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7B3%7D)