Question

помогите решить пожалуйста срочно​

Answer 1

${x}^{2} + 7x + 12 = 0 \\ x_{1} + x_{2} = - 7 \\ x_{1} \times x_{2} = 12 \\ x_{1} = - 3 \\ x_{2} = - 4$

${x}^{2} - x - 2 = 0 \\ x_{1} + x_{2} = 1 \\x_{1} \times x_{2} = - 2 \\ x_{1} = 2 \\ x_{2} = - 1$

${x}^{2} + 2x - 35 =0 \\ x_{1} + x_{2} = - 2 \\ x_{1} \times x_{2} = - 35 \\ x_{1} = - 7 \\ x_{2} = 5$