x^2-4x+b=0

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Solution for x^2-4x+b=0 equation:


Simplifying
x2 + -4x + b = 0

Reorder the terms:
b + -4x + x2 = 0

Solving
b + -4x + x2 = 0

Solving for variable 'b'.

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

Add '4x' to each side of the equation.
b + -4x + 4x + x2 = 0 + 4x

Combine like terms: -4x + 4x = 0
b + 0 + x2 = 0 + 4x
b + x2 = 0 + 4x
Remove the zero:
b + x2 = 4x

Add '-1x2' to each side of the equation.
b + x2 + -1x2 = 4x + -1x2

Combine like terms: x2 + -1x2 = 0
b + 0 = 4x + -1x2
b = 4x + -1x2

Simplifying
b = 4x + -1x2

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