(6a-7)(6a+7)=

Solution for (6a-7)(6a+7)= equation:

Simplifying
(6a + -7)(6a + 7) = 0

Reorder the terms:
(-7 + 6a)(6a + 7) = 0

Reorder the terms:
(-7 + 6a)(7 + 6a) = 0

Multiply (-7 + 6a) * (7 + 6a)
(-7(7 + 6a) + 6a * (7 + 6a)) = 0
((7 * -7 + 6a * -7) + 6a * (7 + 6a)) = 0
((-49 + -42a) + 6a * (7 + 6a)) = 0
(-49 + -42a + (7 * 6a + 6a * 6a)) = 0
(-49 + -42a + (42a + 36a2)) = 0

Combine like terms: -42a + 42a = 0
(-49 + 0 + 36a2) = 0
(-49 + 36a2) = 0

Solving
-49 + 36a2 = 0

Solving for variable 'a'.

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

Add '49' to each side of the equation.
-49 + 49 + 36a2 = 0 + 49

Combine like terms: -49 + 49 = 0
0 + 36a2 = 0 + 49
36a2 = 0 + 49

Combine like terms: 0 + 49 = 49
36a2 = 49

Divide each side by '36'.
a2 = 1.361111111

Simplifying
a2 = 1.361111111

Take the square root of each side:
a = {-1.166666667, 1.166666667}