Respuesta :

mariussasu

Answer:

the answer is 21

Step-by-step explanation:

4x to the power of 2 + 5x

so: 4*1 the power of 2 +5*1

4to power of 2 +5

and 4 to the power of 2 equals 16 (because 4*4=16) and +5

so 16+5=21