Respuesta :
15x^2 + 13x - 20
= 15x^2 + 25x - 12x - 20
= 5x(3x + 5) - 4(3x + 5)
= (5x - 4)(3x + 5)
= 15x^2 + 25x - 12x - 20
= 5x(3x + 5) - 4(3x + 5)
= (5x - 4)(3x + 5)
Answer:
binomial (5x -4)(3x +5) factor of trinomial.
Step-by-step explanation:
Given : 15x² + 13x - 20.
To find : Which of the binomials below is a factor of this trinomial.
Solution : We have given
Trinomial : 15x² + 13x - 20.
On factoring
15x² + 25x - 12x - 20.
5x( 3x +5) - 4 (3x +5)
On grouping
(5x -4)(3x +5)
These two binomial (5x -4)(3x +5) factor of trinomial.
Therefore, binomial (5x -4)(3x +5) factor of trinomial.
