leighaherrington706 leighaherrington706
  • 24-08-2021
  • Mathematics
contestada

what must be added to 2x^2 - 5x - 12 in order to get 7x^2 - x - 18

Respuesta :

chibunduoyibe
chibunduoyibe chibunduoyibe
  • 24-08-2021

Answer:

5x^2 +4x -6

Step-by-step explanation:

that is the answer

yep

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jimrgrant1 jimrgrant1
  • 24-08-2021

Answer:

5x² + 4x - 6

Step-by-step explanation:

Subtract 2x² - 5x - 12 from 7x² - x - 18 , that is the opposite operation, that is

7x² - x - 18 - (2x² - 5x - 12) ← distribute parenthesis by - 1

= 7x² - x - 18 - 2x² + 5x + 12 ← collect like terms

= 5x² + 4x - 6

Answer Link

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