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If (x + 2)(3x^2 + x + 5) = Ax^2 + Bx^2 + Cx + D, what is the value of A + B - C - D?

 Aug 9, 2021
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There will be a 3 x^3   term in the final expansion, so this cannot be reduced to " Ax^2 + Bx^2 + Cx + D " form.....    is your question correct?

 Aug 9, 2021

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