mariocasoni2004 mariocasoni2004
  • 15-12-2019
  • Mathematics
contestada


[tex]x ^{2} + 2x - 15[/tex]
​

texx 2 2x 15tex class=

Respuesta :

clairebear102003
clairebear102003 clairebear102003
  • 15-12-2019

Answer:

(x-3)(x+5)

Step-by-step explanation:

the only 2 things that can multiply together to get x^2 is x and x

so you already have the first 2 parts of the factoring

(x±?)(x±?)

to get 15 there are a 2 multipliers

1,15

3,5

if you tried 1,15

(x+15)(x-1)

that wouldnt work because 15-1=14

we need to get to 2

Let's trty 5 and 3

(x+5)(x-3)

5x-3=-15

5-3=2

sorry if my explanation doesnt make sense im terrible at explaining things lol

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