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Simplifying
9x2 + -25 = 4
Reorder the terms:
-25 + 9x2 = 4
Solving
-25 + 9x2 = 4
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '25' to each side of the equation.
-25 + 25 + 9x2 = 4 + 25
Combine like terms: -25 + 25 = 0
0 + 9x2 = 4 + 25
9x2 = 4 + 25
Combine like terms: 4 + 25 = 29
9x2 = 29
Divide each side by '9'.
x2 = 3.222222222
Simplifying
x2 = 3.222222222
Take the square root of each side:
x = {-1.795054936, 1.795054936}
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