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Simplifying
(4a2 + -9b2) = 0
Remove parenthesis around (4a2 + -9b2)
4a2 + -9b2 = 0
Solving
4a2 + -9b2 = 0
Solving for variable 'a'.
Move all terms containing a to the left, all other terms to the right.
Add '9b2' to each side of the equation.
4a2 + -9b2 + 9b2 = 0 + 9b2
Combine like terms: -9b2 + 9b2 = 0
4a2 + 0 = 0 + 9b2
4a2 = 0 + 9b2
Remove the zero:
4a2 = 9b2
Divide each side by '4'.
a2 = 2.25b2
Simplifying
a2 = 2.25b2
Take the square root of each side:
a = {-1.5b, 1.5b}
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