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anonymous

  • one year ago

Solve the following system of equations and show all work. y = −x2 + 4 y = 2x + 1

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  1. anonymous
    • one year ago
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    y = −x2 + 4 y = 2x + 1

  2. anonymous
    • one year ago
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    hm

  3. anonymous
    • one year ago
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    just need the steps

  4. anonymous
    • one year ago
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    there are many diffrent ways to fo this but we r going to do this this way, staep 1 take x and y and put them on 1 side

  5. anonymous
    • one year ago
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    step*

  6. anonymous
    • one year ago
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    alright

  7. anonymous
    • one year ago
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    y +x^2= 4 y - 2x = 1 then subtract y from y

  8. anonymous
    • one year ago
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    i think i dont i just oearned his last month

  9. anonymous
    • one year ago
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    yeah i dont no sorry

  10. anonymous
    • one year ago
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    thats a hard question

  11. anonymous
    • one year ago
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    1. Subtract the 2 equations and factor them out and set equal to 0 to solve for x: \[-x^2-2x+3=0\rightarrow -(x^2+2x-3)=0\rightarrow -[(x+3)(x-1)]=0\] 2. Then, solve for x: \[x = -3 and 1\] 3. Plug x in to solve for y for 1 solution: \[y = 2x+1\rightarrow y = 2(1)+1\rightarrow y = 3\] 4. Plug in x to solve y for 2nd solution: \[y = 2x + 1\rightarrow y = 2(-3)+1\rightarrow y = -5\] 5. Solutions are (1,3) and (-3,-5)

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