Question

в ответ запишите больший из корней

Answer 1

I hope this helps you


${x}^{2} - 7 \times 28 = 0 \\ \\ \\ {x}^{2} - {7}^{2} \times {2}^{2} = 0 \\ \\ \\ \\ {x}^{2} - {14}^{2} = 0 \\ \\ (x - 14)(x + 14) = 0 \\ \\ \\ x = 14 \\ \\ \\ x = - 14$