Question

1-(2x+10)²


2-(x+5)²


3-(2x+xy)²


4-(5y+2x)²

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Answer 1

Explicação passo-a-passo:

1- (2x+10)²

(2x+10).(2x+10)

4x² + 20x + 20x + 100

4x² + 40x + 100

2- (x+5)²

(x+5).(x+5)

x² + 5x + 5x + 25

x² + 10x + 25

3- (2x+xy)²

(2x+xy).(2x+xy)

4x² + 2x²y + 2x²y + x²y²

4x² + 4x²y + x²y²

4- (5y+2x)²

(5y+2x).(5y+2x)

25y² + 10xy + 10xy + 4x²

4x² + 25y² + 20xy