Question

if the zeros of the polynomial P of x is equal to X square + (A + 1 )X + B are 2 and minus 3 find a and b

Answer 1

substitute p(x) =2
p(2)=(2)square+(A+1)2+B=0
=4+2A+2+B=0
6+4A+B=0. (1)eq
p(x)=-3
(-3)square+(A+1)(-3)+B
9-3A-3+B
6-3A+B. (2)eq
from (1)&(2)
4A+B=-6
-3A+B=-6
+. - +
_________
7A=0
A=0/7
A=0
substitute in eq(1)
4A+B=-6
4(0)+B =-6
0+B=-6
B=-6
hope this answer helps u

Answer 2

I can't understand .......