Question

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Resolva pra mim

X²=64

X²-121=0

2x²=8

Answer 1

x²= 64
x= √64
x= ±8
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x²-121= 0
x²= 121
x= √121
x= ±11
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2x²= 8
x²= 8/2
x²= 4
x= √4
x= ±2
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Forte abraço!