Respuesta :

Answer:

2x² - 7x - 2

Step-by-step explanation:

We require to calculate the difference

2x² - 11 - (7x - 9) ← distribute parenthesis by - 1

= 2x² - 11 - 7x + 9 ← collect like terms

= 2x² - 7x - 2

Answer:

2x² - 7x - 2

Step-by-step explanation:

i did that exam

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