Question

решите пжлст
x^2-16x=-63​

Answer 1

Ответ:

$x_1 = 7 \\ x_2 = 9$

Объяснение:

${x}^{2} - 16x = - 63 \\ {x}^{2} - 16x + 63 = 0 \\ {x}^{2} - 7x - 9x + 63 = 0 \\ x(x - 7) - 9(x - 7) = 0 \\ (x - 7)(x - 9) = 0 \\ x - 7 = 0 \\ x_1 = 7 \\ x - 9 = 0 \\ x_2 = 9$

Answer 2

${x}^{2} - 16x = - 63$

${x}^{2} - 16x + 63 = 0$

$x1 + x2 = 16$

$x1 \times x2 = 63$

$x1 = 7$

$x2 = 9$