x²+root 2 x - 4 = 0
factorise the equation
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xsquare+root2 x-4=0
xsquare+root2x=0+4
xsquare+root2x=4
x+root2x=root4
x+root2x=2
x=2×root2x
x=2root2x
missuniverse786:
ya say
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