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Simplifying
x[9x] + -5 = 0
Remove brackets around [9x]
x * 9x + -5 = 0
Reorder the terms for easier multiplication:
9x * x + -5 = 0
Multiply x * x
9x2 + -5 = 0
Reorder the terms:
-5 + 9x2 = 0
Solving
-5 + 9x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '5' to each side of the equation.
-5 + 5 + 9x2 = 0 + 5
Combine like terms: -5 + 5 = 0
0 + 9x2 = 0 + 5
9x2 = 0 + 5
Combine like terms: 0 + 5 = 5
9x2 = 5
Divide each side by '9'.
x2 = 0.5555555556
Simplifying
x2 = 0.5555555556
Take the square root of each side:
x = {-0.745355993, 0.745355993}
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