Question

b^10 × b^20 = b^10 × b^m​

Answer 1

Step-by-step explanation:

${b}^{10} \times {b}^{20} = {b}^{10} \times {b}^{m} \\ {b}^{10 + 20} = {b}^{10 + m} \\ {b}^{30} = {b}^{10 + m} \\ on \: comparing : \\ 30 = 10 + m \\ m = 20$

HOPE IT HELPS YOU

Answer 2

Step-by-step explanation:

for the given equation,value of 'm' would be =20