Question

chapter 4 quadratic equations​

Answer 1

${x}^{2} - 2kx + (7k - 12) = 0 \\ {x}^{2} - 2kx + 7k - 12 = 0 \\ {x}^{2} - 2kx + 7k = 12 \\ {x}^{2} - kx + k = \frac{12}{2 \times 7} \\ {x}^{2} - kx + k = \frac{12}{14} \\ {x}^{2} - x = \frac{12}{14} \\ x = \frac{12}{14} \\ x = \frac{6}{7}$mark as brainliest