feliciamaishakujo feliciamaishakujo

03-09-2020
Mathematics

contestada

Which is a factor of 5x2 − 15x − 20?

Respuesta :

julie005 julie005

06-09-2020

Answer:

x= -1, x=4

Step-by-step explanation:

5x²-15x-20

5x²-20x+5x-20=0

5x(x-4) +5(x-4)

(5x+5) (x-4) =0

5x=-5 or x=4

x= -5/5. or x=4

x= -1 or x=4

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