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29 March, 06:14

First (a) simplify the expression and then (b) evaluate the expression for x = - 8.

2x + 5[x - 2 (2 + x) ]

+2
Answers (2)
  1. 29 March, 06:33
    0
    Answer: 4

    Step-by-step explanation:

    a) Simplied Expresion

    2x+5 (x-2 (2+x))

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

    2x+5 (-x-4)

    2x-5x-20

    -3x-20

    b) x=-8

    -3 (-8) - 20 = 4
  2. 29 March, 06:40
    0
    A)

    2x + 5 [x - 2 (2+x) ]

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

    2x + 5 (-x - 4)

    2x - 5x - 20

    -3x-20 = > answer

    B)

    -3x - 20

    -3 (-8) - 20

    24 - 20

    4 = > answer
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