Question

plz answer this question
add the following ​

Answer 1

Answer:

-3x²-5x-2

Step-by-step explanation:

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Answer 2

Answer:

-3x² + 9x + 8

Step-by-step explanation:

(5x² - 7x + 3) + (-8x² + 2x - 5)

=[5x² + (-8x²)] + [7x + 2x] + [3 + 5]

=[5x² - 8x²] + 9x + 8

= -3x² + 9x + 8