Question

if{x+1} and {x-1} are the factors of px cube+x square-2x +q find values of p and q

Answer 1

Answer:

P = 2

Q = -1

Step-by-step explanation:

x+1 and x-1 are the factors of given polynomial ,so if we put -1 as well as 1 in the given p(x)...it will tend to 0

PUTTING x = 1

px³+x²-2x+q= 0

p+q=1...

PUTTING x = -1

-p+1+2+q=0

q-p=-3

hence  P= 2

Q= -1

HOPE IT HELPS..