factorise x cube + 13 x square + 32 X + 20 and how to find other factor
Answers
Answered by
1
Answer:
put x= -1
then divide whole equation by x+1
(x+1) (x2 + 12x+20)
solution - x=-1 , -10, -2
Answered by
1
Answer:
Step-by-step explanation:
find first factor by hit and trial and method
put x=0,1,-1,2,-2,.....
x=-1 satisfies above equation
apply synthetic division
-1 { 1 13 32 20 )
0 -1 -12 -20
=1 12 20 0
therefore x^3+13x^2+32x+20/x+1 = x^2+12x+20
factors of x^2+12x+20 are - 10 and -2
therefore factors are -1,-2 and -10
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