Question

please ans fast it is very important ​

Answer 1

Step-by-step explanation:

putting values

3²+-4²/-4²-3²=9+16/16-9=15/7

Answer 2

Answer:

$\frac{{a}^{2} + {b}^{2} }{ {b}^{2} - {a}^{2} }$

$where \: a= 3 \: and \: b= -4$

$\frac{ {3}^{2} + {( - 4)}^{2} }{ {( - 4)}^{2} - {3}^{2} } = \frac{9 + 16}{16 - 9} = \frac{25}{7}$

hope it will help you