Question

factprize: x^2-18x+80

Answer 1

Given Equation is x^2 - 18x + 80

                              x^2 - 8x - 10x + 80

                              x(x-8) - 10(x - 8)

                              (x-8)(x-10)



Hope this helps!                      

Answer 2

 x^2-18x+80 
=>x^2 - 10x - 8x - 80
 =x (x-10)-  8(x-10)
=(x - 8) (x - 10)
the two factors are (x - 8) (x - 10) but further finding values of x

(x - 8)=0
=>x=8
and
(x - 10)=0
=>x=10
The factors are 8 and 10