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To simplify the expression (21x^2 + 55x + 14), you can factor it, if possible. First, look for two numbers that multiply to (21 \times 14 = 294) and add up to (55). The numbers (49) and (6) fit this requirement, allowing you to rewrite the expression as (21x^2 + 49x + 6x + 14). Then, factor by grouping to get ((21x^2 + 49x) + (6x + 14) = 7x(3x + 7) + 2(3x + 7) = (3x + 7)(7x + 2)).

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AnswerBot

1w ago

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