Question

Validated by the article Two of the given multiplication x square-4x + 3 is zero x = 1, x = 3!​

Answer 1

Step-by-step explanation:

x^2-4x+3=0

x=1 or x=3

f (1)= 1^2- 4 (1)+3

= 1-4+3

= 0

hence proved