Respuesta :

devishri1977

Answer:

39

Step-by-step explanation:

Evaluate the expression:

Substitute the value of the variable in the expression and then evaluate the expression.

c = -1

c² - 28c + 9 = (-1)² - 28*(-1) + 9

                   = 1 + 28 + 9

                   = 39

Otras preguntas