Объяснение:
г) a²b²+2ab+1=(ab)²+2*ab*1+1²=(ab+1)².
д) b²-2a²b+a⁴=b²-2*a²*b+(a²)²=(b-a²)².
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Verified answer
Объяснение:
г) a²b²+2ab+1=(ab)²+2*ab*1+1²=(ab+1)².
д) b²-2a²b+a⁴=b²-2*a²*b+(a²)²=(b-a²)².