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16 September, 19:47

Evaluate the following y^2-5y+2

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  1. 16 September, 21:38
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    If y = 3, then you substitute 3 into wherever it says y.

    So the original:

    y² - 5y + 2

    becomes:

    3² - 5*3 + 2.

    which is:

    9 - 15 + 2.

    9 - 15 = - 6

    -6 + 2 = - 4.

    -4 is the answer.
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