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anonymous

  • 4 years ago

change 9x squared + 4y squared + 126x + 64y + 661=0 into standared form

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  1. anonymous
    • 4 years ago
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    I am trying to learn to do them of course, but once I do them am not sure if I have the right answer....just getting the answers would not help me if I can't do them myself

  2. anonymous
    • 4 years ago
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    Not to worry

  3. anonymous
    • 4 years ago
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    I will surely help you

  4. anonymous
    • 4 years ago
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    Thank you so much balaa

  5. anonymous
    • 4 years ago
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    Here is one to get you started 9x^2+4y^2+126x+64y+661=0 9x^2 + 126x + 4y^2 + 64y = -661 9(x^2 + 14x) + 4(y^2 + 16y) = -661 9(x + 7)^2 + 4(y + 8)^2 = -661 + 9•7^2 + 4•8^2 9(x + 7)^2 + 4(y + 8)^2 = 36 9(x + 7)^2 / 36 + 4(y + 4)^2 / 36 = 36/36 (x + 7)^2 / 4 + (y + 4)^2 / 9 = 1

  6. anonymous
    • 4 years ago
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    Standard form (x + 7)^2 / 4 + (y + 4)^2 / 9 = 1

  7. anonymous
    • 4 years ago
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    thank you blaa I think I'm getting it

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