✨ Best Answer ✨
√²は絶対値と同じです！
なので、√ײ+√（ײ+4x＋4）
=｜x｜＋（x+2）
×＞0のとき、x+x+2=2x+2
x＜0のとき、-x-x+2=-2x+2
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✨ Best Answer ✨
√²は絶対値と同じです！
なので、√ײ+√（ײ+4x＋4）
=｜x｜＋（x+2）
×＞0のとき、x+x+2=2x+2
x＜0のとき、-x-x+2=-2x+2
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