please answer this question
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x² + 3√3 - 30
= x² + 5√3x - 2√3x - 30
= x( x + 5√3 ) - 2√3 ( x + 5√3 )
= ( x + 5√3 ) ( x - 2√3 )
= x² + 5√3x - 2√3x - 30
= x( x + 5√3 ) - 2√3 ( x + 5√3 )
= ( x + 5√3 ) ( x - 2√3 )
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