solve by factorization method :
x² + 2root2 x -6 =0
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Answer:
x^2 + 2√2x -6 =0
x^2 + (3√2-1√2)x - 6
x^2 + 3√2x - 1√2x - 6
x^2 + 3√2x - 1√2x - 3√2.1√2
x ( x + 3√2) - 1√2( x + 3√2)
( x+ 3√2) ( x - 1√2)
x+3√2=0 , x - 1√2 =0
x = - 3√2 , x = + 1√2
x( -3√2 and + 1√2)
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