plz answer this question
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Answer: (4x+5)²
Step-by-step explanation:
16 x² + 25 + 40x
= 16 x² + 40x + 25
= (4x)² + [2 × (4x) ×5] + 5²
= (4x+5)² [using the identity (a+b)²=a²+2ab+b²
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