plz do the 7 no question
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given quadratic
3x²+2√5x-5 = 0
3x²+3√5x -√5x -5 = 0
3x (x+√5) -√5(x+√5) = 0
(x+√5)(3x-√5) = 0
thus X = -√5
or X = √5/3
3x²+2√5x-5 = 0
3x²+3√5x -√5x -5 = 0
3x (x+√5) -√5(x+√5) = 0
(x+√5)(3x-√5) = 0
thus X = -√5
or X = √5/3
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