(7h-2)(7h+2)=

Solution for (7h-2)(7h+2)= equation:

Simplifying
(7h + -2)(7h + 2) = 0

Reorder the terms:
(-2 + 7h)(7h + 2) = 0

Reorder the terms:
(-2 + 7h)(2 + 7h) = 0

Multiply (-2 + 7h) * (2 + 7h)
(-2(2 + 7h) + 7h * (2 + 7h)) = 0
((2 * -2 + 7h * -2) + 7h * (2 + 7h)) = 0
((-4 + -14h) + 7h * (2 + 7h)) = 0
(-4 + -14h + (2 * 7h + 7h * 7h)) = 0
(-4 + -14h + (14h + 49h2)) = 0

Combine like terms: -14h + 14h = 0
(-4 + 0 + 49h2) = 0
(-4 + 49h2) = 0

Solving
-4 + 49h2 = 0

Solving for variable 'h'.

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

Add '4' to each side of the equation.
-4 + 4 + 49h2 = 0 + 4

Combine like terms: -4 + 4 = 0
0 + 49h2 = 0 + 4
49h2 = 0 + 4

Combine like terms: 0 + 4 = 4
49h2 = 4

Divide each side by '49'.
h2 = 0.08163265306

Simplifying
h2 = 0.08163265306

Take the square root of each side:
h = {-0.285714286, 0.285714286}