Express the product ( 2x-3) (x+5) as a trinomial

2x² + 7x - 15

Step-by-step explanation:

The concept you need to know is called foiling. Watch a video on it because it's easier to see than explain with text.

Other concept is a trinomial is a expression with three terms: ax² + bx + c

(2x-3)(x+5)

= (2x)(x) + (2x)(5) + (-3)(x) + (-3)(5)

= 2x² + 10x - 3x - 15

= 2x² + 7x - 15

so, converting firstly the mixed fractions to improper fractions and then "adding".