Предмет: Алгебра, автор: Татьянка7

Квадрат задуманного числа на 16 больше,чем произведение двух чисел,меньших задуманного на 1 и на 2 соотвественно.Найдите задумманое число........помогите пожалуста...очень срочно надо...даю 25пкт)

Ответы

Автор ответа: Настенькаа

0

задумманое число.-Х

х^2-(х-1)(х-2)=16

х^2-(х^2-х-2х+2)=16

х^2-х^2+3х-2=16

3х=18

х=6

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