90x(x)=810

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Solution for 90x(x)=810 equation: 


Simplifying
90x(x) = 810

Multiply x * x
90x2 = 810

Solving
90x2 = 810

Solving for variable 'x'.

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

Divide each side by '90'.
x2 = 9

Simplifying
x2 = 9

Take the square root of each side:
x = {-3, 3}

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