Question

check whether minus 2 and 2 are zeros of polynomial X + 2 ​

Answer 1

Let p(x) = x+2

i) if x = -2 then

p(-2) = -2+2 = 0

Therefore,

-2 is a zero of p(x).

ii) If x = 2 then

p(2) = 2+2

= 4

p(2)≠0

Therefore,

2 is not a zero of p(x).

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Answer 2

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