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This is an example of a quadratic equation. It has many solutions depending of the value of x. Its solution would commonly be shown as a graph.

For example, if x = 2 then the answer is 22 + 16x2 +55 = 4+32+55 = 91.

if x = 3 then the answer is 32 + 16x3 + 55 = 9+48+55 = 112.

[but check my arithmetic!]

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Q: X to the second power plus 16x plus 55 equals?
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