0=2x^2-21x+60

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Solution for 0=2x^2-21x+60 equation:


Simplifying
0 = 2x2 + -21x + 60

Reorder the terms:
0 = 60 + -21x + 2x2

Solving
0 = 60 + -21x + 2x2

Solving for variable 'x'.

Combine like terms: 0 + -60 = -60
-60 + 21x + -2x2 = 60 + -21x + 2x2 + -60 + 21x + -2x2

Reorder the terms:
-60 + 21x + -2x2 = 60 + -60 + -21x + 21x + 2x2 + -2x2

Combine like terms: 60 + -60 = 0
-60 + 21x + -2x2 = 0 + -21x + 21x + 2x2 + -2x2
-60 + 21x + -2x2 = -21x + 21x + 2x2 + -2x2

Combine like terms: -21x + 21x = 0
-60 + 21x + -2x2 = 0 + 2x2 + -2x2
-60 + 21x + -2x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
-60 + 21x + -2x2 = 0

Begin completing the square.  Divide all terms by
-2 the coefficient of the squared term: 

Divide each side by '-2'.
30 + -10.5x + x2 = 0

Move the constant term to the right:

Add '-30' to each side of the equation.
30 + -10.5x + -30 + x2 = 0 + -30

Reorder the terms:
30 + -30 + -10.5x + x2 = 0 + -30

Combine like terms: 30 + -30 = 0
0 + -10.5x + x2 = 0 + -30
-10.5x + x2 = 0 + -30

Combine like terms: 0 + -30 = -30
-10.5x + x2 = -30

The x term is -10.5x.  Take half its coefficient (-5.25).
Square it (27.5625) and add it to both sides.

Add '27.5625' to each side of the equation.
-10.5x + 27.5625 + x2 = -30 + 27.5625

Reorder the terms:
27.5625 + -10.5x + x2 = -30 + 27.5625

Combine like terms: -30 + 27.5625 = -2.4375
27.5625 + -10.5x + x2 = -2.4375

Factor a perfect square on the left side:
(x + -5.25)(x + -5.25) = -2.4375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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