heavenfranklin24 heavenfranklin24

03-06-2021
Mathematics

contestada

Which equation is an identity?
a.i (x+i)=xi - 1
b. i(x-2i) = xi - 2
c. (4x-7)(4x+1)= 15
d. (3x + (3x +21) = 7x +91

Respuesta :

erbarek erbarek

03-06-2021

Answer:

D

Step-by-step explanation:

A and B are not, and C doesnt work so D

Answer Link

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