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8 April, 10:06

The zeros of a quadratic function are - 8 and 5. Write the quadratic function in Standard Form.

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  1. 8 April, 11:35
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    y = x² + 3x - 40

    Step-by-step explanation:

    Given the zeros are x = - 8 and x = 5, then the factors are

    (x + 8) and (x - 5) and

    y = (x + 8) (x - 5) ← expand factors

    y = x² - 5x + 8x - 40, hence

    y = x² + 3x - 40 ← in standard form
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