Bonjour
196 + 196 x + 49x²
= 14² + 14*2*7x + (7x)²
= ( 14 + 7x ) ²
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Bonjour
196 + 196 x + 49x²
= 14² + 14*2*7x + (7x)²
= ( 14 + 7x ) ²