(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}