Determine the rational roots of each polynomial function.
f (x) = x² - 3x + 2
choices are :
-1 and 2
1 and -2
1 and 2
-1 and -2
Answers
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Answer:
1 and 2
Step-by-step explanation:
x² - 3x + 2=0
=>x² - 2x - x + 2=0
=>x(x - 2) - 1(x - 2)=0
=>(x-1)(x-2)=0
=> x=1; x=2
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