Question

.if p(x) = 5 -4x +2, find (a) p(0) (b) p(3) (c) p(-2) (d) p(-1)​

Answer 1

Answer:

1258(558)-548654578

Answer 2

Step-by-step explanation:

x

2

−px+p+3=0

(a) one positive root and one negative root:

⇒ product of roots should be negative.

⇒ (P+3)<0.

⇒ P<−3

and Δ>0

P

2

−4(p−3)>0.

P

2

−4p+12>0

(P−2)

2

+8>0.

(b) both roots are negative :

⇒ sum of roots = negative

⇒ P=negative

⇒P<0

product of roots should be positive

P+3>0

P>−3

∴P∈(−3,0)