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Simplifying
17 + -2c * c = 7
Multiply c * c
17 + -2c2 = 7
Solving
17 + -2c2 = 7
Solving for variable 'c'.
Move all terms containing c to the left, all other terms to the right.
Add '-17' to each side of the equation.
17 + -17 + -2c2 = 7 + -17
Combine like terms: 17 + -17 = 0
0 + -2c2 = 7 + -17
-2c2 = 7 + -17
Combine like terms: 7 + -17 = -10
-2c2 = -10
Divide each side by '-2'.
c2 = 5
Simplifying
c2 = 5
Take the square root of each side:
c = {-2.236067978, 2.236067978}
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