Answer:
f^2 -6f+f+6
f (f-6) +0 (f-6)
(f+0) (f-6)
(f-6)(f-1)
Explanation:
f²-7f+6
= f² - 6f - f + 6
= f(f-6) - 1(f-6)
= (f-6)(f-1)
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