heavenfranklin24
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 erbarek
  • 03-06-2021

Answer:

D

Step-by-step explanation:

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

Answer Link

Otras preguntas

what are three ways water erodes the surface of earth
what type of rock is the Haystack rock (igneous, Metamorphic, or Sedimentary)
what are three ways water erodes the surface of earth
36 is _______% less than 60?
10u + 7 = 8 ( 2u - 4 ) - 9
Why did Henry Clay group his resolutions in pairs in the Compromise of 1850?
What's breed of given cat???Check attachment
36 is _______% less than 60?
2 ( 4a - 12 ) + 3a = 6a + 1
A snowball is launched horizontally from the top of a building at v = 16.9 m/s. If it lands d = 44 meters from the bottom, how high (in m) was the building?