donnafair
donnafair donnafair
  • 19-10-2021
  • Mathematics
contestada

Simplify the following polynomial expression.

Simplify the following polynomial expression class=

Respuesta :

jimrgrant1 jimrgrant1
  • 19-10-2021

Answer:

3x² - 10x + 8

Step-by-step explanation:

(5x² + 13x - 4) - (17x² + 7x - 19) + (5x - 7)(3x + 1)

Distribute the first 2 parenthesis and expand the product of factors using FOIL

= 5x² + 13x - 4 - 17x² - 7x + 19 + 15x² - 16x - 7 ← collect like terms

= 3x²- 10x + 8

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