divide:
a) 84xy²z³ by 7yz²
b)20(x²yz + xz²y + xy²z) by 5xyz
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Answer:
a) 84xy²z³/7yz²
= take 7yz outside since it's common in both cases
= 7yz(12xyz²)/7yz(z)
= 12xyz²/7yz
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