Question

Factorise: -18 + 11x - x^2

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Answer 1

Step-by-step explanation:

$- 18 + 11x - x \times 2 \\ = - 18 + 11x - 2x \\ = - 18 + 9x$

Answer 2

$-18 + 11x - x^2$

$−(x {}^{2} −11x+18)$

$−9 and -2$

$(x-9)(x-2)$

$−(x−9)(x−2)$