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36*z**2 %2B 49*y**2 %2B 84*(y*z) |
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Answer» 49y^2 + 84yz + 36z^2 = (7y)^2 + 2 × (7y) × (6z) + (6z)^2 = (7y + 6z)2 [(a + b)2 = a2 + 2ab + b2] |
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