kaleykaley kaleykaley
  • 14-04-2019
  • Mathematics
contestada

Answer!!!!!!!!!!!!!and explain plz

Answerand explain plz class=

Respuesta :

jackie3811 jackie3811
  • 14-04-2019
D

add 49 to both sides to get x by itself
x^2 - 49 = 0
+49 +49

square root both sides to get rid of the square
√x^2 = √49
x= ±7

since both -7 and 7 are square roots to 49, it’s D
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