Question

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

Answer 1

b: x+3 is your answer

Answer 2

Answer: Option 'B' is correct.

Explanation:

Since we have given that

`5x^2+14x-3`

As we know "Split the middle term":

`5x^2+15x-x-3\\\\=5x(x+3)-1(x+3)\\\\=(5x-1)(x+3)`

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

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

Hence, Option 'B' is correct.