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18 May, 23:23

In the equation 4x2-5x=21, what is the value of b? 4 - 5 - 21

+5
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  1. 18 May, 23:27
    0
    4x^2-5x-21 is of the form ax^2+bx+c, a quadratic equation.

    so b in this case is - 5
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