x2-4x-3=0
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X²-4x-3=0,x=[4+-√{(-4)²-4×1× (-3)}]/2,x=[4+-√{16+12}]/2,x=[4+-√(28)]/2,x=[4 +-4√7]/2,x=[2+-2√7],thenx=(2+2√7) ...
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x²-4x-3=0,x=[4+-√{(-4)²-4×1×(-3)}]/2,x=[4+-√{16+12}]/2,x=[4+-√(28)]/2,x=[4+-4√7]/2,x=[2+-2√7],thenx=(2+2√7),andx=(2-2√7)
this is correct answer
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