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anonymous

  • one year ago

Find x3 - 2y2 - 3x3 + z4 if x = 3, y = 5, and z = -3.

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  1. Baby_Bear69
    • one year ago
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    \(\Huge\bf\color{#FF0000}W\color{#FF4900}e\color{#FF9200}l\color{#FFDB00}c\color{#FFff00}o\color{#B6ff00}m\color{#6Dff00}e\color{#24ff00}~\color{#00ff00}t\color{#00ff49}o\color{#00ff92}~\color{#00ffDB}O\color{#00ffff}p\color{#00DBff}e\color{#0092ff}n\color{#0049ff}S\color{#0000ff}t\color{#2400ff}u\color{#6D00ff}d\color{#B600ff}y\color{#FF00ff}!\)

  2. texaschic101
    • one year ago
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    x^3 - 2y^2 - 3x^3 + z^4 ---- x = 3, y = 5, z = -3 now we sub 3^3 - 2(5^2) - 3(3^3) + (-3^4) can you do the math now ?

  3. anonymous
    • one year ago
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    -185

  4. texaschic101
    • one year ago
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    27 - 2(25) - 3(27) + 81 27 - 50 - 81 - 81 -212 + 27 -185 thats what I got

  5. texaschic101
    • one year ago
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    oops..made a mistake on first line...supposed to be -81

  6. anonymous
    • one year ago
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    yep

  7. texaschic101
    • one year ago
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    same answer....-185

  8. anonymous
    • one year ago
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    so it is -185

  9. texaschic101
    • one year ago
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    yes

  10. anonymous
    • one year ago
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    i got it wrong

  11. texaschic101
    • one year ago
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    hold on...let me check again 3^3 - 2(5^2) - 3(27) + 81 ---- it is + 81 because -3^4 = -3*-3*-3*-3 = 81 27 - 50 - 81 + 81 - 23 (the 81's cancel each other out)

  12. texaschic101
    • one year ago
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    I am so sorry about that

  13. anonymous
    • one year ago
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    can i ask you another question

  14. anonymous
    • one year ago
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    ??

  15. anonymous
    • one year ago
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    Find -3a2 - b3 + 3c2 - 2b3 if a = 2, b = -1, and c = 3.

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