Question

16x²-81=0 решить уравнение

Answer 1

$16 {x}^{2} - 81 = 0 \ 16 {x}^{2} = 81 \ {x}^{2} = frac{81}{16} \ x = + - frac{9}{4}$

Answer 2

${16x}^{2} = 81$
${x}^{2} = frac{81}{16}$
$x = + - frac{9}{4}$