mack3305 mack3305
  • 23-02-2018
  • Mathematics
contestada

which of the binomials below is a factor of this trinomial

5x^2+14x-3

a. x-3
b. x+3
c. 5x+3
d. 5x-3

Respuesta :

zrh2sfo
zrh2sfo zrh2sfo
  • 23-02-2018
b: x+3 is your answer
Answer Link
windyyork windyyork
  • 29-08-2019

Answer: Option 'B' is correct.

Step-by-step explanation:

Since we have given that

[tex]5x^2+14x-3[/tex]

As we know "Split the middle term":

[tex]5x^2+15x-x-3\\\\=5x(x+3)-1(x+3)\\\\=(5x-1)(x+3)[/tex]

Since it is quadratic equation so, it has 2 roots.

So, the roots are (x+3) and (5x-1).

Hence, Option 'B' is correct.

Answer Link

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