C(x)=x^2-40x+690

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Solution for C(x)=x^2-40x+690 equation: 


Simplifying
C(x) = x2 + -40x + 690

Multiply C * x
xC = x2 + -40x + 690

Reorder the terms:
xC = 690 + -40x + x2

Solving
xC = 690 + -40x + x2

Solving for variable 'x'.

Reorder the terms:
-690 + 40x + xC + -1x2 = 690 + -40x + x2 + -690 + 40x + -1x2

Reorder the terms:
-690 + 40x + xC + -1x2 = 690 + -690 + -40x + 40x + x2 + -1x2

Combine like terms: 690 + -690 = 0
-690 + 40x + xC + -1x2 = 0 + -40x + 40x + x2 + -1x2
-690 + 40x + xC + -1x2 = -40x + 40x + x2 + -1x2

Combine like terms: -40x + 40x = 0
-690 + 40x + xC + -1x2 = 0 + x2 + -1x2
-690 + 40x + xC + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-690 + 40x + xC + -1x2 = 0

The solution to this equation could not be determined.

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