Solve the equations. Show your work.
1. a? – 49 = 0

Answer:
[tex]\boxed{a = 7~~or~~a = -7}[/tex]
Step-by-step explanation:
[tex]a^2 - 49 = 0[/tex]
[tex]a^2 = 49[/tex]
[tex]a = \pm \sqrt{49}[/tex]
[tex]a = \pm 7[/tex]