DEllis70 DEllis70

11-03-2020
Mathematics

contestada

Find the value of c such that the expression is a perfect-square trinomial.
[tex]x^{2} +18x+c[/tex]
c = ?

Respuesta :

devishri1977 devishri1977

11-03-2020

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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