Mathematics, 28.12.2020 18:10, djnkyworld

Suppose 3 is a root of the quadratic equation ax² – 2x – 21 = 0. Find the value of a and hence find the other root of the equation.

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Suppose 3 is a root of the quadratic equation ax² – 2x – 21 = 0. Find the value of a and hence find...

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