-x^2+19+42=0

Solution for -x^2+19+42=0 equation:

Simplifying
-1x2 + 19 + 42 = 0

Reorder the terms:
19 + 42 + -1x2 = 0

Combine like terms: 19 + 42 = 61
61 + -1x2 = 0

Solving
61 + -1x2 = 0

Solving for variable 'x'.

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

Add '-61' to each side of the equation.
61 + -61 + -1x2 = 0 + -61

Combine like terms: 61 + -61 = 0
0 + -1x2 = 0 + -61
-1x2 = 0 + -61

Combine like terms: 0 + -61 = -61
-1x2 = -61

Divide each side by '-1'.
x2 = 61

Simplifying
x2 = 61

Take the square root of each side:
x = {-7.810249676, 7.810249676}