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Find the value of c such that the expression is a​ perfect-square trinomial. x^(2) +18x+c c = ?
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2 votes
Find the value of c such that the expression is a​ perfect-square trinomial.


x^(2) +18x+c
c = ?

User Royki
by
7.8k points

1 Answer

4 votes

Answer:

81

Explanation:

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

a = x

2ab = 18x = 2 * x * 9

c = 9*9 = 81

User Lucas Dias
by
7.7k points
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