if x=-9 is a rout of x 3 7
2 x 2 = 0
7 6 x
then the other rout of are
Answers
Answered by
1
Answer:
ANSWER
∣
∣
∣
∣
∣
∣
∣
∣
x
2
7
3
x
6
7
2
x
∣
∣
∣
∣
∣
∣
∣
∣
=0
⇒x(x
2
−12)−3(2x−14)+7(12−7x)=0
⇒x
3
−67x+126=0
if x=−9
(−9)
3
−67(−9)+126=−729+729=0
∴(x+9) is the factor of x
3
−67x+126
⇒x
3
−67x+126=(x+9)(x
2
−9x+14)
⇒ other two roots a,b are 2,7
∴ab=14
Answered by
1
Step-by-step explanation:
CHANNEL NAME : - NEPALI SACHIN VLOG..
PLEASE WATCH THE VIDEO...
Dislike > Like !.. If u don't believe then checkout this video..
Similar questions