j^2-42-144=0

Solution for j^2-42-144=0 equation:

Simplifying
j2 + -42 + -144 = 0

Reorder the terms:
-42 + -144 + j2 = 0

Combine like terms: -42 + -144 = -186
-186 + j2 = 0

Solving
-186 + j2 = 0

Solving for variable 'j'.

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

Add '186' to each side of the equation.
-186 + 186 + j2 = 0 + 186

Combine like terms: -186 + 186 = 0
0 + j2 = 0 + 186
j2 = 0 + 186

Combine like terms: 0 + 186 = 186
j2 = 186

Simplifying
j2 = 186

Take the square root of each side:
j = {-13.638181697, 13.638181697}