X^2+14X+140=0

Solution for X^2+14X+140=0 equation:

Simplifying
X2 + 14X + 140 = 0

Reorder the terms:
140 + 14X + X2 = 0

Solving
140 + 14X + X2 = 0

Solving for variable 'X'.

Begin completing the square.

Move the constant term to the right:

Add '-140' to each side of the equation.
140 + 14X + -140 + X2 = 0 + -140

Reorder the terms:
140 + -140 + 14X + X2 = 0 + -140

Combine like terms: 140 + -140 = 0
0 + 14X + X2 = 0 + -140
14X + X2 = 0 + -140

Combine like terms: 0 + -140 = -140
14X + X2 = -140

The X term is 14X.  Take half its coefficient (7).
Square it (49) and add it to both sides.

Add '49' to each side of the equation.
14X + 49 + X2 = -140 + 49

Reorder the terms:
49 + 14X + X2 = -140 + 49

Combine like terms: -140 + 49 = -91
49 + 14X + X2 = -91

Factor a perfect square on the left side:
(X + 7)(X + 7) = -91

Can't calculate square root of the right side.

The solution to this equation could not be determined.