(14z^2)-(7u^2)=

Solution for (14z^2)-(7u^2)= equation:

Simplifying
(14z2) + -1(7u2) = 0

Remove parenthesis around (7u2)
(14z2) + -1 * 7u2 = 0

Multiply -1 * 7
(14z2) + -7u2 = 0

Reorder the terms:
-7u2 + (14z2) = 0

Solving
-7u2 + (14z2) = 0

Solving for variable 'u'.

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

Add '(-14z2)' to each side of the equation.
-7u2 + (14z2) + (-14z2) = 0 + (-14z2)

Combine like terms: (14z2) + (-14z2) = 0
-7u2 + 0 = 0 + (-14z2)
-7u2 = 0 + (-14z2)
Remove the zero:
-7u2 = (-14z2)

Divide each side by '-7'.
u2 = (2z2)

Simplifying
u2 = (2z2)

Take the square root of each side:
u = {(-1.414213562z), (1.414213562z)}