Question

true or false: 2 is one zero at p(x)=x2-6+8 polynomial
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Answer 1

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p(x) = x² - 6x + 8

p(2) = 2² -6(2) + 8

⠀⠀⠀= 4 - 12 + 8

⠀⠀⠀= 12-12

⠀⠀⠀= 0

So, 2 is one zero of x² - 6x + 8