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Anon25 [30]
3 years ago
5

Find the value of c such that the expression is a​ perfect-square trinomial.

Mathematics
1 answer:
Kazeer [188]3 years ago
4 0

Answer:

81

Step-by-step explanation:

perfect-square trinomial form: a² +2ab +b²

a = x

2ab = 18x = 2 * x * 9

c = 9*9 = 81

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