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10 August, 12:45

Match each polynomial to the term that does not change the polynomial's classification when added to it.

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  1. 10 August, 15:49
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    1) If we add - x to x² + 3 x we will get: x² + 3 x - x = x² + 2 x, with same number of terms and same degree (2),

    2) xy - 1 + xy = 2 xy - 1

    3) x + y - 3 y = x - 2 y

    4) x³ - 5 x² + 1 - 2 x³ = - x³ - 5 x² + 1

    Pairs:

    (x² + 3 x) ↔ (-x)

    (xy - 1) ↔ (xy)

    (x + y) ↔ ( - 3 y)

    (x³ - 5 x + 1) ↔ ( - 2 x³)
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