(9x^2-7)*(9x^2+7)=

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Solution for (9x^2-7)*(9x^2+7)= equation:


Simplifying
(9x2 + -7)(9x2 + 7) = 0

Reorder the terms:
(-7 + 9x2)(9x2 + 7) = 0

Reorder the terms:
(-7 + 9x2)(7 + 9x2) = 0

Multiply (-7 + 9x2) * (7 + 9x2)
(-7(7 + 9x2) + 9x2 * (7 + 9x2)) = 0
((7 * -7 + 9x2 * -7) + 9x2 * (7 + 9x2)) = 0
((-49 + -63x2) + 9x2 * (7 + 9x2)) = 0
(-49 + -63x2 + (7 * 9x2 + 9x2 * 9x2)) = 0
(-49 + -63x2 + (63x2 + 81x4)) = 0

Combine like terms: -63x2 + 63x2 = 0
(-49 + 0 + 81x4) = 0
(-49 + 81x4) = 0

Solving
-49 + 81x4 = 0

Solving for variable 'x'.

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

Add '49' to each side of the equation.
-49 + 49 + 81x4 = 0 + 49

Combine like terms: -49 + 49 = 0
0 + 81x4 = 0 + 49
81x4 = 0 + 49

Combine like terms: 0 + 49 = 49
81x4 = 49

Divide each side by '81'.
x4 = 0.6049382716

Simplifying
x4 = 0.6049382716

Reorder the terms:
-0.6049382716 + x4 = 0.6049382716 + -0.6049382716

Combine like terms: 0.6049382716 + -0.6049382716 = 0.0000000000
-0.6049382716 + x4 = 0.0000000000

The solution to this equation could not be determined.

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