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i <3 HawkNelson
Lv 4
i <3 HawkNelson asked in Science & MathematicsMathematics · 10 years ago

Solve the following polynomial equation 8z^3 - 64 = 0!!! It ends with 3 answers!!! PLEASE help?

these arent the answers but the answers should look like this.

z = 1

z = -1 + i√3 ÷ 2

z = -1 - i√3 ÷ 2

*the 2 is supposed to be under the -1 - i√3 but i couldnt get it to work right.

These answers are from another problem just like this one. Please please please help me!!!

3 Answers

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  • ?
    Lv 4
    10 years ago
    Favorite Answer

    8z^3 - 64 = 0

    8z^3 = 64

    z^3 = 8

    z = 2

  • Brenda
    Lv 4
    10 years ago

    8z^3 - 64 = 0

    8z^3 = 64

    z^3 = 8

    z = 2

  • Amar Soni
    Lv 7
    10 years ago

    8z^3 -64 =0

    divide by 8

    z^3 -8 =0

    z^3 = 8 =(2)^3

    z = 2 .............Ans

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