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which expression shows 7+21 wriiten as a product of two factors 7(3 + 3) 3(1 + 7) 7(1 + 3) or 3(3 + 7)
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which expression shows 7+21 wriiten as a product of two factors 7(3 + 3) 3(1 + 7) 7(1 + 3) or 3(3 + 7)

User Jan Van Der Vegt
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Answer:

Explanation:

i think its 7(1+3) because (1+3)= 4 28/4 = 7

User Ben Croughs
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