Factorise x³-27x+10
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Answer:
Step-by-step explanation:
x=5 1 0 -27 10
0 5 25 -10
1 5 -2 0
(x²+5x-2=0) (x-5)
( -b±√b²-4ac)/2a
(-5±√25+8)/2
(-5±√33)/2
x = (-5+√33)/2 , (-5-√33)/2 , 5
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