X^2-9x-42=0

Solution for X^2-9x-42=0 equation:

Simplifying
X2 + -9x + -42 = 0

Reorder the terms:
-42 + X2 + -9x = 0

Solving
-42 + X2 + -9x = 0

Solving for variable 'X'.

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

Add '42' to each side of the equation.
-42 + X2 + 42 + -9x = 0 + 42

Reorder the terms:
-42 + 42 + X2 + -9x = 0 + 42

Combine like terms: -42 + 42 = 0
0 + X2 + -9x = 0 + 42
X2 + -9x = 0 + 42

Combine like terms: 0 + 42 = 42
X2 + -9x = 42

Add '9x' to each side of the equation.
X2 + -9x + 9x = 42 + 9x

Combine like terms: -9x + 9x = 0
X2 + 0 = 42 + 9x
X2 = 42 + 9x

Simplifying
X2 = 42 + 9x

Reorder the terms:
-42 + X2 + -9x = 42 + 9x + -42 + -9x

Reorder the terms:
-42 + X2 + -9x = 42 + -42 + 9x + -9x

Combine like terms: 42 + -42 = 0
-42 + X2 + -9x = 0 + 9x + -9x
-42 + X2 + -9x = 9x + -9x

Combine like terms: 9x + -9x = 0
-42 + X2 + -9x = 0

The solution to this equation could not be determined.