Question

5х-3[y+2] при x=-2 y=-4

Answer 1

5×-2[-4+2]=5×8+4=44 смотри в учебник

Answer 2

To evaluate the expression 5x - 3[y + 2] when x = -2 and y = -4, we substitute the given values into the expression:

5(-2) - 3[-4 + 2]

Simplifying the inside of the brackets first:

5(-2) - 3[-2]

Now, perform the multiplications:

-10 - 3(-2)

Multiply -3 by -2:

-10 + 6

Combine the terms:

-4

Therefore, when x = -2 and y = -4, the value of the expression 5x - 3[y + 2] is -4.