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23-01-2024
Mathematics

contestada

If C, equals, 2, x, minus, 5, x, squared, minus, 9C=2x−5x
2
−9 and D, equals, x, squared, plus, 9, x, commaD=x
2
+9x, find an expression that equals 3, C, plus, 2, D3C+2D in standard form.
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