Mathematics, 23.11.2020 22:20 deanlmartin

Is 2x + 5 a factor of 12x4 + 30x3 + 8x2 + 4x - 40? Explain your reasoning

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Is 2x + 5 a factor of 12x4 + 30x3 + 8x2 + 4x - 40? Explain your reasoning...