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Another algebra problem please?

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(x + 3)(x - 3) when x = - 4

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  1. -1*-7= 7

    7


  2. wow.do ur hw ur self sweety

  3. (x+3)(x-3)

    so just replace x with -4 and...

    (-4+3)(-4-3)

    solve inside the parenthesis

    (-1)(-7)

    just multiply and

    -1*-7= 7

  4. this is wuite simple.

    plug -4 into all teh x spots

    (-4+3)(-4-3)

    then solve the stuff in the () then multiple those 2 answers together to get ur final answer... hope that helps


  5. (x+3)(x-3)

    (-4+3)(-4-3)

    solve each in the parenthesis then solve

    (-1)(-7)

    a negative * a negative is a positive

    7

  6. Simply replace the Xes with the -4 and solve inside the parentheses first, then multiply both terms together.

    x+3  = -4+3  = -1

    x-3  = -4-3  = -7

    -1 x -7 = 7

  7. (-4+3)(-4-3)

    (-1)(-7)

    I'll leave the rest up to you.. Wouldn't want to spoil all the fun.

  8. rewrite the question with -4 anywhere you see an x

    (-4+3)(-4-3)=

    then follow the order of operations


  9. (x + 3)(x - 3) when x = - 4

    x times x = x^2

    +3 times -3 = -9

    so you have x^2 - 9

    -4^2 =16

    16-9=7

    =7

    You can also do it like this:

    (x + 3)(x - 3) when x = - 4

    -4 + 3 =-1

    -4 - 3 = -7

    -1 x -7 = 7

    =7

    ***7***

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