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3 December, 18:37

The variables X, Y, and Z represent polynomials where X = a, Y = 3a - 5, and Z = a2 + 2. What is X2Y - Z in simplest form?

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  1. 3 December, 18:56
    0
    3a³ - 6a² - 2

    Step-by-step explanation:

    X²Y - Z

    = a² (3a - 5) - (a² + 2) ← distribute both parenthesis

    = 3a³ - 5a² - a² - 2 ← collect like terms

    = 3a³ - 6a² - 2
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