Предмет: Алгебра, автор: yanagornaya

Способом выделения квадрата двучлена решите уравнение
х в квадрате минус 12х плюс 35 = 0

Ответы

Автор ответа: michindjeva
4

{x}^{2} - 12x + 35 = 0 \\ {x }^{2} - 7x - 5x + 35 = 0 \\ x(x - 7) - 5(x - 7) = 0 \\ (x - 7)(x - 5) = 0 \\ x1 = 7 \\ x2 = 5
Автор ответа: abdugafforovadilnoza
0

          x^2-12x+35=0

          x^2-12x+36-1=0

          (x-6)^2-1=0

          (x-6)^2=1

x-6=1                      x-6=-1

x=1+6                     x=-1+6

x=7                         x=5

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