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Factor.

0.25x^2 + 0.3x + 0.09

Thank you! :-)

One approach is to just use the quadratic formula to solve it. But, you could probably do it by inspection if you write the equation as:
0.25x^2 + 0.3x + 0.09
=(10^(-2))(25x^2 + 30x + 9)

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