Como resolver:
A) 2.(x+4)²
B) 5x.(x+2)²=10
Soluções para a tarefa
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A) 2.(x+4)²
2.(x + 4).(x + 4)
2.(x² + 4x + 4x + 16)
2.(x² + 8x + 16)
2x² + 16x + 32
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B) 5x.(x+2)²=10
5x.(x + 2).(x + 2) = 10
5x.(x² + 2x + 2x + 4) = 10
5x.(x² + 4x + 4) = 10
5x³ + 20x² + 20 x -10 = 0
5x².(x + 4) + 10.(2x - 1)
2.(x + 4).(x + 4)
2.(x² + 4x + 4x + 16)
2.(x² + 8x + 16)
2x² + 16x + 32
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B) 5x.(x+2)²=10
5x.(x + 2).(x + 2) = 10
5x.(x² + 2x + 2x + 4) = 10
5x.(x² + 4x + 4) = 10
5x³ + 20x² + 20 x -10 = 0
5x².(x + 4) + 10.(2x - 1)
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