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Show all steps solve the problem evaluate the expression for given value of variable|-4b-8|+|-1=b2|+2b3:b=-2

  • algebra -

    you wrote
    |-4b-8|+|-1=b2|+2b3

    I shall endeavor to unravel the typos. If I get it wrong, fix it and follow the logic provided to arrive at the correct solution.

    |-4b-8| + |-1-b^2| + 2b^3
    |-4(-2)-8| + |-1-(-2)^2| + 2(-2)^3
    |8-8| + |-1-4| + 2(-8)
    0 + 5 - 16
    -11

  • algebra -

    3 (a2 + b ) - 4 ( a2-b )

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