Question 16 Perform the multiplication and combine like terms. $(x+2)(x-4)(3x+2)$ $3x^3-4x^2-12x+16$ $3x^3-8x^2-20x+16$ $3x^3-8x^2-36x-16$ $3x^3-4x^2-28x-16$
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Using the FOIL method: First: $x \cdot x = x^2$ Outer: $x \cdot (-4) = -4x$ Inner: $2 \cdot x = 2x$ Last: $2 \cdot (-4) = -8$ Combine like terms: $x^2 - 4x + 2x - 8 = x^2 - 2x - 8$. Show more…
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