.20x*x=.45

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Solution for .20x*x=.45 equation: 


Simplifying
0.20x * x = 0.45

Multiply x * x
0.20x2 = 0.45

Solving
0.20x2 = 0.45

Solving for variable 'x'.

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

Divide each side by '0.20'.
x2 = 2.25

Simplifying
x2 = 2.25

Take the square root of each side:
x = {-1.5, 1.5}

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