Respuesta :

vale3016
To evaluate the expression for u = -1, we substitute -1 into the equation:

6(-1)^2 + 25(-1) + 9

Simplifying, we get:

6(1) - 25 + 9

Which further simplifies to:

6 - 25 + 9

And finally:

-10

So, when u = -1, the expression 6u^2 + 25u + 9 equals -10.

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