Question

Help do this if possible kk rlly stuck
X^2 – 11x + 18 = 0

Answer 1

x = - 9, x = 2

Explanation:

`{x}^(2) - 11x + 18 = 0 \\ \\ {x}^(2) - 9x - 2x + 18 = 0 \\ \\ x(x +9 ) - 2(x + 9) = 0 \\ \\ (x + 9)(x - 2) = 0 \\ \\ x + 9 = 0 \: \: or \: \: x - 2 = 0 \\ \\ x = - 9 \: \: or \: \: x = 2 \\`