DeltonY204826 DeltonY204826
  • 25-10-2022
  • Mathematics
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which of the following is equivalent to x2 - 3x -18

which of the following is equivalent to x2 3x 18 class=

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EnamJ248751 EnamJ248751
  • 25-10-2022

Given:

x² - 3x - 18

We are asked to find it's equivalent from the option.

x² - 3x - 18

the factors for the above equation are 3 and -6

= (x² + 3x) + (-6x - 18)

Let's factor x from x² + 3x:

x(x + 3)

Let's factor out -6 from -6x - 18:

-6(x + 3)

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

Let's factor out x + 3

= (x + 3) (x - 6)

= (x - 6)(x + 3)

Therefore, the equivalent of

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