Question

Can anyone help with this math problem

Answer 1

Answer:

${b}^{28}$

Step-by-step explanation:

${ \bigg( \frac{ {b}^{19} }{ {b}^{12} } } \bigg)^{4} \\ \\ = { \bigg( { {b}^{19 - 12} }} \bigg)^{4} \\ \\ = { \bigg( { {b}^{7} }} \bigg)^{4} \\ \\ = {b}^{7 \times 4} \\ \\ = {b}^{28}$

Answer 2

6.28477 If I’m correct