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Simplifying
5x2 + 20 = 80
Reorder the terms:
20 + 5x2 = 80
Solving
20 + 5x2 = 80
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-20' to each side of the equation.
20 + -20 + 5x2 = 80 + -20
Combine like terms: 20 + -20 = 0
0 + 5x2 = 80 + -20
5x2 = 80 + -20
Combine like terms: 80 + -20 = 60
5x2 = 60
Divide each side by '5'.
x2 = 12
Simplifying
x2 = 12
Take the square root of each side:
x = {-3.464101615, 3.464101615}
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