it's solution...plz​

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Answer:

3

Step-by-step explanation:

Substituting x = 3 in the polynomial x² - 5x + 3

3² - 5*3 + 3 = 9 - 15 + 3

    = -3

It leaves a remainder of -3. Therefore, -3 should be subtracted or -(-3) = 3 should be added.