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(3x+y)(7x-y) find the product |
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Answer» 21x + 4xy - y^2Step-by-step EXPLANATION:(3X+y)(7x-y)(3 × 7x) + (y × 7x) - (3x × y) - (y × y)21x + 7xy - 3XY - y^221x + 4xy - y^2 |
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