Math, asked by rishika5961, 1 year ago

if (x+1) and (x+2) are the factor of the polynomial p(x)=x3+ax2+2x+a+4.


rishika5961: only factor
blackpinf4ever: Oh ok ...I'll do it
rishika5961: yes
rishika5961: sorry
rishika5961: ok
blackpinf4ever: Wait a minute. ..There should be 2 unknowns in ur question
rishika5961: what
blackpinf4ever: Like maybe the equation should be x3+ax2+2x+b+4
rishika5961: b ki place par a h
rishika5961: its ok

Answers

Answered by aayushkhanna1
3

Step-by-step explanation:

p(-1) = 0

p(-2) = 0. (Because x+1 and x+2 both are factors)

p(-1) = p(-2)

(-1)³+a(-1)²+2(-1)+a+4 = (-2)³+a(-2)²+2(-2)+a+4

-1+a-2 = -8+4a-4 (a+4 is both sides so they are cancelled)

-1-2+8+4 = 4a-a

3a = 9

a = 3

Hope this helps you. Plz mark me as brainliest.


aayushkhanna1: Sis plz mark me as brainliest
rishika5961: bro breinliest ka option nhi aya
aayushkhanna1: Jab aayega tab kar diyo
aayushkhanna1: Sis ab to do logo me answer de diya ab to kar de
Answered by blackpinf4ever
3

p(-1) = 0

p(-2) = 0. (Because x+1 and x+2 both are factors)

p(-1) = p(-2)

(-1)³+a(-1)²+2(-1)+a+4 = (-2)³+a(-2)²+2(-2)+a+4

-1+a-2 = -8+4a-4 (a+4 is both sides so they are cancelled)

-1-2+8+4 = 4a-a

3a = 9

a = 3

Read more on Brainly.in - https://brainly.in/question/8177897#readmore

Mark the first answer the brainliest!

Similar questions