1, 2, 3, or 4​; the second digit can only be 0, 1, or 2​; and there are no restrictions on the remaining digits. How many different area codes are​ possible?       Express the number of area codes as a product.   Total number of area codes​ = nothing ​(Do not​ multiply.)

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Q: f₁(x) = x₁ f₂(x) = x², f3(x) = 4x - 2x² g(x) = C₁f₁(x) + C₂f₂(x) + c3f3(x) olve for C₁, C₂, and c3…

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