A^2-20a+42=0

Solution for A^2-20a+42=0 equation:

Simplifying
A2 + -20a + 42 = 0

Reorder the terms:
42 + A2 + -20a = 0

Solving
42 + A2 + -20a = 0

Solving for variable 'A'.

Move all terms containing A to the left, all other terms to the right.

Add '-42' to each side of the equation.
42 + A2 + -42 + -20a = 0 + -42

Reorder the terms:
42 + -42 + A2 + -20a = 0 + -42

Combine like terms: 42 + -42 = 0
0 + A2 + -20a = 0 + -42
A2 + -20a = 0 + -42

Combine like terms: 0 + -42 = -42
A2 + -20a = -42

Add '20a' to each side of the equation.
A2 + -20a + 20a = -42 + 20a

Combine like terms: -20a + 20a = 0
A2 + 0 = -42 + 20a
A2 = -42 + 20a

Simplifying
A2 = -42 + 20a

Reorder the terms:
42 + A2 + -20a = -42 + 20a + 42 + -20a

Reorder the terms:
42 + A2 + -20a = -42 + 42 + 20a + -20a

Combine like terms: -42 + 42 = 0
42 + A2 + -20a = 0 + 20a + -20a
42 + A2 + -20a = 20a + -20a

Combine like terms: 20a + -20a = 0
42 + A2 + -20a = 0

The solution to this equation could not be determined.