find a and b if X + 1 and x minus 2 are factors of PX is equal to x cube +a x square + 2 X + b
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Answer:
here, -1 +a-2+b=0
or, a+b =3....... (i)
8+4a+4+b=0
4a+b=-12... (ii)
subtracting (i) from (ii)
3a=-15
so, a =-5
& b=3-a= 3+5=8 ans...