3X^2-18=282

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Solution for 3X^2-18=282 equation:


Simplifying
3X2 + -18 = 282

Reorder the terms:
-18 + 3X2 = 282

Solving
-18 + 3X2 = 282

Solving for variable 'X'.

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

Add '18' to each side of the equation.
-18 + 18 + 3X2 = 282 + 18

Combine like terms: -18 + 18 = 0
0 + 3X2 = 282 + 18
3X2 = 282 + 18

Combine like terms: 282 + 18 = 300
3X2 = 300

Divide each side by '3'.
X2 = 100

Simplifying
X2 = 100

Take the square root of each side:
X = {-10, 10}

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