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2 years ago

What is the value of x in the equaton

itle=" {25}x^{2} = 16" alt=" {25}x^{2} = 16" align="absmiddle" class="latex-formula">

Mathematics

1 answer:

lisov135 [29]2 years ago

5 0

$25x^2=16\ \ \ |:25\\\\x^2=\dfrac{16}{25}\to x=\pm\sqrt{\dfrac{16}{25}}\\\\x=-\dfrac{\sqrt{16}}{\sqrt{25}}\ \vee\ x=\dfrac{\sqrt{16}}{\sqrt{25}}\\\\\boxed{x=-\dfrac{4}{5}\ \vee\ x=\dfrac{4}{5}}$

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