factorize : x^3 + x + 2
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Hope you find the solution crystal clear.
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Answered by
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Step-by-step explanation:
x³+x+2
put x=-1
(-1)³+(-1)+2
-1-1+2=0
so here we get another factor (x+1)
x²(x+1)-x(x+1)+2(x+1)=0
(x+1)(x²-x+2)=0
(x+1)(x²-x+2)
now do further factor of x²-x+2
x=-b+-√b²-4ac)/2a
x=(1-√7)/2,(1+√7)/2
factors are
(x+1)(x-(1-√7)/2)(x-(1+√7)/2)
I think it is helpful for you
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