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3 December, 04:00

What is the constant term in the perfect square that starts with x2-4x

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  1. 3 December, 04:17
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    add 4

    Step-by-step explanation:

    x^2-4x

    Take the coefficient of the x term

    -4

    Divide it by 2

    -4/2 = -2

    Square it

    (-2) ^2 = 4

    This is what we add to each side

    x^2-4x + 4 = 4
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