Question

16x²-121=0 ajuda pfvr ?​

Answer 1

$16 {x}^{2} - 121 = 0 \\ 16 {x }^{2} = 0 + 121 \\ 16 {x}^{2} = 121 \\ {x}^{2} = \frac{121}{16} \\ x = \frac{ \sqrt{121} }{ \sqrt{16} } \\ x = \frac{11}{4} \: \: ou \: \: x = 2.75$

espero ter ajudado ♡