(21x*4 - 14x*2 + 7x) / 7x*3
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(21x4 − 14x2 + 7x) ÷ 7x3. = 21 x 4 − 14 x 2 + 7 x 7 x 3. = 7 x 3 × 3 x − 14 x 2 + 7 x 7 x 3. = 7 x 3 × 3 x 7 x 3 + − 14 x 2 + 7 x 7 x 3. = 3 x + ...
yug283:
very dum answer
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