Multiple Choice Questions

If x 1 is the HCF of Ax2 Bx C and Bx2 Ax C where A B then value of C is ........

Quantitative Aptitude (CDS) LCM, HCF

If (x+1) is the HCF of Ax² + Bx +C and Bx² + Ax +C where A $\neq$ B , then value of C is

A-B

(x+1) is the factor of Ax²+Bx+C and Bx²+Ax+C.
∴A×(−1)²+B×(−1)+C=0
⇒A−B+C=0.....(1)
Also,

B×(−1)²+A×(−1)+C=0

⇒B−A+C=0....(2)
Adding (1) and (2), we have
2C=0
⇒C=0

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