Question

Factorise the following X²-8x-9

Answer 1

Answer:

(x+1) (x-9)

Step-by-step explanation:

x^2 - 8x -9

x^2 +x - 9x - 9

x(x+1) - 9(x+1)

(x-9)(x+1)

HOPE IT HELPS!

Answer 2

Answer:

$\fbox{\sf (x - 9) (x + 1)}$

Step-by-step explanation:

✥ x² - 8x - 9

= x² + 1x - 9x - 9

= x(x + 1) - 9(x - 1)

= (x - 9) (x + 1)

✥ To solve these type of sums (factorization), we have to split the middle term, which is 8x (given).

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