To multiply the binomials \((2x - 6)(x + 7)\) and simplify them, follow these steps in order:
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Start with the given expression: \[ (2x - 6)(x + 7) \]
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Distribute each term in the first binomial to each term in the second binomial: \[ 2x \cdot x + 2x \cdot 7 - 6 \cdot x - 6 \cdot 7 \]
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Perform the multiplications: \[ 2x^2 + 14x - 6x - 42 \]
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Combine the like terms: \[ 2x^2 + (14x - 6x) - 42 \]
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Simplify: \[ 2x^2 + 8x - 42 \]
Therefore, the final simplified trinomial is: \[ 2x^2 + 8x - 42 \]