Question

${x}^{2} - 4 = 0$
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Answer 1

Answer:

X=+2 or -2

Step-by-step explanation:

$x {}^{2} - 4 = 0 \\ x {}^{2} = 0 + 4 \\ x { }^{2} = 4 \\ x = 2$

therefore X= + 2 or -2