Question

${x}^{2} - 11 + 18 = 0$
x=​

Answer 1

x² -11x + 18 = 0

x             - 9

x             - 2

-2x - 9x = -11x

(x - 9)(x -2) = 0

x - 9 = 0         x - 2 = 0

x  = 9              x  = 2

CS = (2 ; 9)

Eternamente axllxa