7a^2-448=0

Solution for 7a^2-448=0 equation:

Simplifying
7a2 + -448 = 0

Reorder the terms:
-448 + 7a2 = 0

Solving
-448 + 7a2 = 0

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '448' to each side of the equation.
-448 + 448 + 7a2 = 0 + 448

Combine like terms: -448 + 448 = 0
0 + 7a2 = 0 + 448
7a2 = 0 + 448

Combine like terms: 0 + 448 = 448
7a2 = 448

Divide each side by '7'.
a2 = 64

Simplifying
a2 = 64

Take the square root of each side:
a = {-8, 8}