in quadratic equations chapter
what is the simplest method of completing square method
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if x≤-1 then,
x²+x+1=x(x+1)+1≥1 since x and x+1 are both negative if -1 smaller than x smaller than 0 , then x²+x+1=x²+(x+1) greater than 0+0=0 thus in other words convert it in form (d x+e)²+f=0
x²+x+1=x(x+1)+1≥1 since x and x+1 are both negative if -1 smaller than x smaller than 0 , then x²+x+1=x²+(x+1) greater than 0+0=0 thus in other words convert it in form (d x+e)²+f=0
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