check whether -5 and 5 are zeroes of p(x)=x²-25.
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yes...-5 and 5 are zeroes of the polynomial
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p(x) = x^2-25
Let x = -5
p(x) = x^2-25
p(5) = 5^2-25
. . . . = 25-25
. . . . = 0
Let x= -5
p(-5) = (-5)^2-25
. . . . = 25-25
. . . . = 0
Both 5 and -5 are zeroes of p(x)
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