Question

7x = 12 + x²
Помогите решить (ﾉﾟ0ﾟ)ﾉ~​

Answer 1

-x^2+7x-12=0 |•(-1)
x^2-7x+12=0
D=(7)^2-4•12=49-48=1
x1=7+1/2=4
x2=7-1/2=3

Answer 2

Ответ:

${x }^{2} - 7x + 12 = 0 \\ d = 49 \times ( - 4) \times 12 = 1 \\ x1 = \frac{7 + 1}{2} = 4 \\ x2 = \frac{7 - 1}{2} = 3 \\ otvet.. \: 3 \: and \: 4$