\( P=x^{2}-7 x+8 \)
\( x=3, \; x=4 \)
Step 1 :\( P(x)=x^{2}-7x+8 \)
Step 2 :\( P(x)=(x-4)(x-3) \)
Step 3 :\( x=3, \; x=4 \)