4p^2+q^2+r^2-4pq-2qr-4rz factorize
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Step-by-step explanation:
//remember (a+b+c)² = a² + b² + c² + 2ab + 2bc + 2ca
4p²+q²+r²-4pq-2qr-4rz
=> (2p - q - r)²
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