Question

if -2 and 3 are the zeroes of the polynomial p (x) 2x³-x²+ax+b then find the value of a and b​

Answer 1

Answer:

a= 13 and b= -6

Step-by-step explanation:

if a number is 0 of the polynomial then,if we substitute the value then the answer will be 0

Hence,

2(-2)³-(-2)²+a(-2)+b=0

b-2a=20 __(1)

and

2(3)³-(3)²+a(3)+b=0

so, b+3a= -45 __(2)

solving equations (1) and (2)

we get a=13 and b= -6

hope this will help you ʕ·ᴥ·ʔ