Asked by Liz
Explain.
1.) To solve x(x-5)=0 either factor may be equal to zero.
2.) | 8-15i | = 17
3.) The solution for x^2 = -2 cannot be found graphically.
[any help or explanation is greatly appreciated]
1.) To solve x(x-5)=0 either factor may be equal to zero.
2.) | 8-15i | = 17
3.) The solution for x^2 = -2 cannot be found graphically.
[any help or explanation is greatly appreciated]
Answers
Answered by
drwls
(1) is self explanatory.
(3) If you are graphing real numbers, there are none for which the square is negative.
For (2), the || symbols signify the magnitude of the complec number inside. In this case, it is the square root of 8^2 + 1562.
(3) If you are graphing real numbers, there are none for which the square is negative.
For (2), the || symbols signify the magnitude of the complec number inside. In this case, it is the square root of 8^2 + 1562.
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