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What is the value of n so that the expression x^2-8x+n is a perfect square trinomial?

A.-4
B.4
C.-16*
D.16

I think its C but im not sure

1 answer

The square of a binomial can have a negative term only as its middle term,
the first and last term will always be positive
so it must be
+16
since (x - 4)^2 = ......

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