Multiply the following and collect like terms: \[ (2 x+3) \cdot\left(-3 x^{2}-2 x+3\right) \] Select the correct answer below: \( -6 x^{3}-13 x^{2}+12 x+9 \) \( -6 x^{3}-13 x^{2}-12 x+9 \) \( -6 x^{3}-6 x^{2}-6 x+9 \) \( -6 x^{3}-13 x^{2}+9 \) \( -6 x^{3}-6 x^{2}+9 \)
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Let's start by distributing the terms in the expression \((2x + 3) \cdot (-3x^2 - 2x + 3)\). 1. Distributing \(2x\): \[ 2x \cdot (-3x^2) = -6x^3 \] \[ 2x \cdot (-2x) = -4x^2 \] \[ 2x \cdot 3 = 6x \] 2. Distributing \(3\): \[ 3 \cdot (-3x^2) = -9x^2 \] \[ 3 \cdot (-2x) = -6x \] \[ 3 \cdot 3 = 9 \] Now, let's combine all these results: \[ -6x^3 + (-4x^2 - 9x^2) + (6x - 6x) + 9 \] This simplifies to: \[ -6x^3 - 13x^2 + 9 \] So the final result after collecting like terms is: \(-6x^3 - 13x^2 + 9\) The correct answer is: \( -6 x^{3}-13 x^{2}+9 \)