Предмет: Математика, автор: iradrobazko547

помогите решить даю 20 баллов ​

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Ответы

Автор ответа: Lotawu
0

Ответ:

В)4(х+5)=6(х²-25)
4х+20=6х²-150
-6х²+4х+170=0
6х²-4х-170=0
Д: 16+4080=4096=64²
Х= (4+64)/12= 34/6=17/3
Х=(4-64)/12 = -5

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