Respuesta :

devishri1977

Answer:

Step-by-step explanation:

xy + 2z = (-2)*4 + 2*(-5)

            = -8 + (-10)

            = -18

elcharly64

Answer:

The value is -18

Step-by-step explanation:

Numerical Value of Expressions

We are given the expression

xy + 2z

It's required to find its value for

x=-2

y=4

z=-5

Substituting:

(-2)(4) + 2(-5)

Operating:

-8 + (-10)

-8 - 10

-18

The value is -18

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