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Find the complete factorization of the expression. 15xz + 21yz A) 3z(5x + 7y) B) 3xy(5z + 7z) C) z(15x + 21y) D) 3(5xz + 7yz)

User Krishnom
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The answer is A. 3z(5x + 7y)

User KZoNE
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