Respuesta :

  • Answer:

- 34

  • Step-by-step explanation:

Hi !

4a⁴ - 2b² + 40 =

replace a = 2 ; b = 7

= 4ₓ2⁴ - 2ₓ7²

= 4ₓ16 - 2ₓ49

= 64 - 98

= - (98 - 64)

= - 34

Good luck !