Find x when 2x^2-4x-6=0
Factorise 2x2-4x-6=0
2(x2-2-3)=0 -> 2(x+1)(x-3)=0
split factors up 2=0 , (x+1)=0 and (x-3)=0
x+1=0 -> x = -1
x-3=0 -> x = 3
IG
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