Question

factorise the equation x^2-9x+18​

Answer 1

Step-by-step explanation:

${x}^{2} - 9x + 18 \\ = {x}^{2} - 6x - 3x + 18 \\ = x(x - 6) - 3(x - 6 ) \\ = (x - 6)(x - 3)$

Answer 2

Answer:

6 OR 3

Step-by-step explanation:

x^2 - 9x + 18 = 0

Split the middle term according to the product of first and last terms

a * c = 18

/\

- 6 - 3

sum = b = - 9

x^2 - 6x - 3x + 18 = 0

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

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

X = 6 OR X = 3