jeff154 jeff154
  • 20-04-2018
  • Mathematics
contestada

How to factor this , please help !!!

How to factor this please help class=

Respuesta :

garydesir1
garydesir1 garydesir1
  • 20-04-2018
Hello there!

7x² - 13x - 24

We wanna start by writing -13x as a sum or difference. So it should look like this:

7x² + 8x - 21x - 24

For 7x² + 8x we need to factor out x

x(7x + 8) - 21x - 24.

Now factor out -3 for -21x - 24

x(7x + 8) - 3(7x + 8)

Now we can factor out 7x + 8 from the expression

(7x + 8)(x - 3)


Let me know if you have any questions about the answer. As always, it is my pleasure to help students like you!
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please help me with this