Question

Give a polynomial p(x)=x^2-5x+4.
a) Find the value of the polynomial p(x) at x=2.
b) Check whether x is a factor of p(x).
c) Factorise p(x).

Answer 1

a ) 2^2-5 (2)+4
=4-10+4
=8-10
=-2
b) yes
sorry I try 3 part

Answer 2

Answer:

B) yes

Step-by-step explanation:

a) P(x)= x^2-5x+4

x=2

p(2)= (2)^2- 5(2)+ 4

= 4-10+4

= -10+8

= -2

C) P(x) = x^2 - 5x + 4

= x^2 - 4x-x +4

= x(x-4) - 1(x-4)

=(x-1) (x-4)