If a,band c are zeroes of cubic polynomial then find abc
Answers
Answered by
0
Answer:
3
+2x
2
−4x−4=0→ roots a,b,c
a+b+c=
1
2
=2,ab+bc+ca=−
1
(−4)
=4,abc=−4
x
3
+9x
2
+rx+s=0→ Roots
a
1
,
b
1
,
c
1
q=
a
1
+
b
1
+
c
1
r=−(
ab
1
+
bc
1
+
ca
1
)
s=
abc
1
q+r+s=
abc
(ab+bc+ca)−(a+b+c)+1
=
−4
4−2+1
=
4
−3
Answered by
1
Answer:
A, B, c are zeros of cubic polynomial
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