(3a^2+7b)(3a^2-7b)=

Solution for (3a^2+7b)(3a^2-7b)= equation:

Simplifying
(3a2 + 7b)(3a2 + -7b) = 0

Multiply (3a2 + 7b) * (3a2 + -7b)
(3a2 * (3a2 + -7b) + 7b * (3a2 + -7b)) = 0
((3a2 * 3a2 + -7b * 3a2) + 7b * (3a2 + -7b)) = 0

Reorder the terms:
((-21a2b + 9a4) + 7b * (3a2 + -7b)) = 0
((-21a2b + 9a4) + 7b * (3a2 + -7b)) = 0
(-21a2b + 9a4 + (3a2 * 7b + -7b * 7b)) = 0
(-21a2b + 9a4 + (21a2b + -49b2)) = 0

Reorder the terms:
(-21a2b + 21a2b + 9a4 + -49b2) = 0

Combine like terms: -21a2b + 21a2b = 0
(0 + 9a4 + -49b2) = 0
(9a4 + -49b2) = 0

Solving
9a4 + -49b2 = 0

Solving for variable 'a'.

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

Add '49b2' to each side of the equation.
9a4 + -49b2 + 49b2 = 0 + 49b2

Combine like terms: -49b2 + 49b2 = 0
9a4 + 0 = 0 + 49b2
9a4 = 0 + 49b2
Remove the zero:
9a4 = 49b2

Divide each side by '9'.
a4 = 5.444444444b2

Simplifying
a4 = 5.444444444b2

Combine like terms: 5.444444444b2 + -5.444444444b2 = 0.000000000
a4 + -5.444444444b2 = 0.000000000

The solution to this equation could not be determined.