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anonymous

  • one year ago

Solve the following system of equations and show all work. y = x2 + 3 y = x + 5

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  1. anonymous
    • one year ago
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    @Hero

  2. anonymous
    • one year ago
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    @kropot72

  3. anonymous
    • one year ago
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    @dan815

  4. iPwnBunnies
    • one year ago
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    I think the easiest way is to equate the x part to each other (since y = y), bring all the terms to one side, and solve the quadratic equation.

  5. iPwnBunnies
    • one year ago
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    x + 5 = x^2 + 3

  6. anonymous
    • one year ago
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    ok that makes sense, but now what?

  7. iPwnBunnies
    • one year ago
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    Take all the terms to the right side, so the left side becomes 0.

  8. anonymous
    • one year ago
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    x+5-x^2-3=0 ?

  9. iPwnBunnies
    • one year ago
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    Yeah, like that. Although, it might've been easier to put the left part on the right side, so you won't have a negative x^2 term. But it makes no difference. If you multiply both sides by -1, you'll get the nicer form. Do that, and simplify.

  10. anonymous
    • one year ago
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    wait I'm confused, can you show me?

  11. anonymous
    • one year ago
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    oh x^2+3-x+5 =0 ???

  12. iPwnBunnies
    • one year ago
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    0 = x^2 + 3 - x - 5

  13. iPwnBunnies
    • one year ago
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    X and 5 are both positive on the left side, so when you subtract it, it'll be negative on the right side.

  14. anonymous
    • one year ago
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    ok got it, no combine 3 and -5 ?

  15. anonymous
    • one year ago
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    *now

  16. iPwnBunnies
    • one year ago
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    Exactly! Finally, solve the quadratic equation.

  17. anonymous
    • one year ago
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    available to help with one more?

  18. iPwnBunnies
    • one year ago
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    I can't find now unfortunately. I'm sorry :c But good luck!

  19. iPwnBunnies
    • one year ago
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    right now*

  20. anonymous
    • one year ago
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    ok

  21. anonymous
    • one year ago
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    wait can you show me the equation real quick with 3 and -5 combined?

  22. anonymous
    • one year ago
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    @iPwnBunnies

  23. anonymous
    • one year ago
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    nevermind sorry

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