(x-a)(x+a)=

Solution for (x-a)(x+a)= equation:

Simplifying
(x + -1a)(x + a) = 0

Reorder the terms:
(-1a + x)(x + a) = 0

Reorder the terms:
(-1a + x)(a + x) = 0

Multiply (-1a + x) * (a + x)
(-1a * (a + x) + x(a + x)) = 0
((a * -1a + x * -1a) + x(a + x)) = 0

Reorder the terms:
((-1ax + -1a2) + x(a + x)) = 0
((-1ax + -1a2) + x(a + x)) = 0
(-1ax + -1a2 + (a * x + x * x)) = 0
(-1ax + -1a2 + (ax + x2)) = 0

Reorder the terms:
(-1ax + ax + -1a2 + x2) = 0

Combine like terms: -1ax + ax = 0
(0 + -1a2 + x2) = 0
(-1a2 + x2) = 0

Solving
-1a2 + x2 = 0

Solving for variable 'a'.

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

Add '-1x2' to each side of the equation.
-1a2 + x2 + -1x2 = 0 + -1x2

Combine like terms: x2 + -1x2 = 0
-1a2 + 0 = 0 + -1x2
-1a2 = 0 + -1x2
Remove the zero:
-1a2 = -1x2

Divide each side by '-1'.
a2 = x2

Simplifying
a2 = x2

Take the square root of each side:
a = {-1x, x}