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Problem
Activity $1:$ Divide the following polynomials using long division. a) $\left(2x^{3}+9x^{2}+3x-4\right)\div \left(x+4\right)$ b) $\left(8x^{3}+27\right)\div \left(2x+3\right)$ c) $\dfrac {11x-20x^{2}+12x^{3}-14} {x-2}$