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Baldwin777

  • 3 years ago

I found out that I have to answer for x so the equation is (x-8)(3x+4)=0

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  1. ZeHanz
    • 3 years ago
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    This equation is of the form a*b = 0. This can be split up as a = 0 or b = 0, So: solve for x: x-8=0 or 3x+4=0

  2. Baldwin777
    • 3 years ago
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    Okay so then how would I do it?

  3. ZeHanz
    • 3 years ago
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    What is the solution of x-8=0?

  4. Baldwin777
    • 3 years ago
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    -8, right

  5. terenzreignz
    • 3 years ago
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    No... You add 8 to both sides of the equation to get x = 8. So 8 is a solution. Now do 3x + 4 = 0

  6. ZeHanz
    • 3 years ago
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    OK, now the solution of 3x+4 = 0

  7. Baldwin777
    • 3 years ago
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    8-3x?

  8. ZeHanz
    • 3 years ago
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    No, if 3x+4=0, you can see that 3x=-4. Why? Because -4+4=0. So the last step is to find the solution of 3x=-4.

  9. Baldwin777
    • 3 years ago
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    Oh yeah duh, so then it would \[-\frac{ 3 }{ 4}\]

  10. ZeHanz
    • 3 years ago
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    ...I would say it's -4/3

  11. Baldwin777
    • 3 years ago
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    oh, I always get them backwards. thank you

  12. ZeHanz
    • 3 years ago
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    YW!

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