lara9741 lara9741

30-09-2020
Mathematics

contestada

Factorise
x² - 9x + 20

Respuesta :

Hrishii Hrishii

30-09-2020

Answer:

(x - 5)(x - 4)

Step-by-step explanation:

[tex] {x}^{2} - 9x + 20 \\ \\ = {x}^{2} - 5x - 4x + 20 \\ \\ = x(x - 5) - 4(x - 5) \\ \\ = (x - 5)(x - 4)[/tex]

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