Respuesta :

a9*8a4

Final result :

23a13
Step by step solution :

Step 1 :

Equation at the end of step 1 :

23a9 • a4
Step 2 :

Multiplying exponential expressions :

2.1 a9 multiplied by a4 = a(9 + 4) = a13

Final result :

23a13

It is 8a^13  since you technically add exponents together since they already multiply.