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Mathematics 8 Online
OpenStudy (anonymous):

Which expression is prime? A)2x^2 - 72 B)3x^2 - 147 C)7x^2 - 112x D)6x^2 + 7x + 3

OpenStudy (anonymous):

i think the D it has not factorization over the real numbers

OpenStudy (anonymous):

yup , good job

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