Question

Factorize x²–3x–18.
Solve it fast...​

Answer 1

Answer

${x}^{2} - 3x - 18 = 0$

${x}^{2} - 6x - + 3x - 18 = 0$

$x(x - 6) + 3(x - 6) = 0$

$(x + 3)(x - 6) = 0$

=== X = –3 as well as 6

Answer 2

Answer:

x²-3x-18

(x+__) (x-__)

3×6 =18 and 6-3=3 ✓

↓

(x+3)(x-6)