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cestrela7 [59]
3 years ago
5

If 4x^2 - 100 = 0, the roots of the equation are

Mathematics
1 answer:
ololo11 [35]3 years ago
5 0
4x^2-100=0 \ \ \ \ \ \ |+100 \\
4x^2=100 \ \ \ \ \ \ \ \ \ \ \  |\div 4 \\
x^2=25 \\
x=\pm \sqrt{25} \\
x=\pm 5 \\
x=-5 \hbox{ or } x=5

The answer is (3) -5 and 5.
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