Question

Factorise the expression x2 - 8x + 7 ?

Answer 1

Answer:

x=7, 1

Step-by-step explanation:

x2 - 8x + 7 = 0

x2 - x - 7x +7 = 0

x(x-1) -7(x-1)=0

(x-7)(x-1)=0

x-7=0 & x-1=0

x=7 & x=1

Answer 2

Answer:

x2-7x-x+7

x(x-7)-1(x-7)

x is equal to 7 and 1