Respuesta :

Answer:

x² - 9x + 20

Step-by-step explanation:

Each term in the second factor is multiplied by each term in the first factor

(x - 5)(x - 4)

= x(x - 4) - 5(x - 4) ← distribute both parenthesis

= x² - 4x - 5x + 20 ← collect like terms

= x² - 9x + 20 ← in expanded form

Answer:

x^2 - 9x + 20.

Step-by-step explanation:

(x - 5)(x - 4)

= x(x - 4) - 5(x - 4)

= x^2 - 4x - 5x + 20

= x^2 - 9x + 20.