√root 7 x square + 7 X equal to zero
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√7 X² + 7X = 0
√7 X ( X + √7 ) = 0
√7 X = 0 or X + √7 = 0
X = 0 or X = -√7
√7 X ( X + √7 ) = 0
√7 X = 0 or X + √7 = 0
X = 0 or X = -√7
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