Respuesta :

The answer would be a.

Answer:

(4 + 21)(3-51) = (3-51)(4+ 21)(4 + 21)(3-51) = (3-51)(4+ 21)(4 + 21)(3-51) = (3-51)(4+ 21)(4 + 21)(3-51) = (3-51)(4+ 21)(4 + 21)(3-51) = (3-51)(4+ 21)(4 + 21)(3-51) = (3-51)(4+ 21)(4 + 21)(3-51) = (3-51)(4+ 21)(4 + 21)(3-51) = (3-51)(4+ 21)(4 + 21)(3-51) = (3-51)(4+ 21)(4 + 21)(3-51) = (3-51)(4+ 21)(4 + 21)(3-51) = (3-51)(4+ 21)(4 + 21)(3-51) = (3-51)(4+ 21)(4 + 21)(3-51) = (3-51)(4+ 21)(4 + 21)(3-51) = (3-51)(4+ 21)(4 + 21)(3-51) = (3-51)(4+ 21)

Step-by-step explanation: