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Mathematics 20 Online
OpenStudy (anonymous):

Megan factored the expression 35x^2-38x+8 as (5x-2)(7x-4). But when Jacob applied the Foil principle and multiplied out (5x-2)(7x-4), he got 35x^2-34x+8; thus Megan's solution does not appear to check. Why is that? Please help Megan to understand this better. Explain your reasoning and correctly factor the original expression, if possible. If the expression is prime, so state.

OpenStudy (anonymous):

Because Megan factored wrong, that's why -20-14=-34

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