Question

Решите уравнения: 25-100^2=0 4-36^2=0

Answer 1

$25-100x^{2}=0$

$100x^{2}=25$

$x^{2}=25:100$

$x^{2}=0,25$

$x=\pm\sqrt{0,25}$

$x_{1}=0,5$

$x_{2}=-0,5$

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$4-36x^{2}=0$

$36x^{2}=4$

$x^{2}=4:36$

$x^{2}=\frac{4}{36}$

$x=\pm\sqrt{\frac{4}{36}}$

$x_{1}=\frac{2}{6}=\frac{1}{3}$

$x_{2}=-\frac{2}{6}=-\frac{1}{3}$