by using factor theorem detrmine weather ( x-3) is factor of polynomial x*-4 x+3
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By factor theorem, (x-3) is a factor of f(x)= x² - 4x + 3 , then f(3)=0
f(3) = 3² - 4x3 + 3
=9 - 12 + 3 = 0
∴ (x-3) is a factor of (x² - 4x + 3)
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