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(5x^{2}\ +\ 13x\ -\ 4)\ -\ (17x^{2}\ +\ 7x\ -\ 19)\ +\ (5x\ -\ 7)(3x\ +\ 1)
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(5x^{2}\ +\ 13x\ -\ 4)\ -\ (17x^{2}\ +\ 7x\ -\ 19)\ +\ (5x\ -\ 7)(3x\ +\ 1)

User Ugo
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1 Answer

5 votes

Answer:

3x² - 10x + 8

Explanation:

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

= 5x² + 13x - 4 - 17x² - 7x + 19 + 15x² - 16x - 7

= 3x² - 10x + 8

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