a^2-20a+160=

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Solution for a^2-20a+160= equation:


Simplifying
a2 + -20a + 160 = 0

Reorder the terms:
160 + -20a + a2 = 0

Solving
160 + -20a + a2 = 0

Solving for variable 'a'.

Begin completing the square.

Move the constant term to the right:

Add '-160' to each side of the equation.
160 + -20a + -160 + a2 = 0 + -160

Reorder the terms:
160 + -160 + -20a + a2 = 0 + -160

Combine like terms: 160 + -160 = 0
0 + -20a + a2 = 0 + -160
-20a + a2 = 0 + -160

Combine like terms: 0 + -160 = -160
-20a + a2 = -160

The a term is -20a.  Take half its coefficient (-10).
Square it (100) and add it to both sides.

Add '100' to each side of the equation.
-20a + 100 + a2 = -160 + 100

Reorder the terms:
100 + -20a + a2 = -160 + 100

Combine like terms: -160 + 100 = -60
100 + -20a + a2 = -60

Factor a perfect square on the left side:
(a + -10)(a + -10) = -60

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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