Question

7. (x - 5x + 7) =(x-2)(x-3) = 1​

Answer 1

x-5x+7=x(x-3)-2(x-3)=1

x-5x+7=x²-3x-2x+6=1

x²-3x-2x+4x+6-7=1

x²-x-1=1

x²-x-2=0

x²-2x+x-2=0

x(x-2)+1(x-2)=0

(x-2)(x+1)=0

x=2,x=-1