9*x^2+4+19=100

Solution for 9*x^2+4+19=100 equation:

Simplifying
9x2 + 4 + 19 = 100

Reorder the terms:
4 + 19 + 9x2 = 100

Combine like terms: 4 + 19 = 23
23 + 9x2 = 100

Solving
23 + 9x2 = 100

Solving for variable 'x'.

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

Add '-23' to each side of the equation.
23 + -23 + 9x2 = 100 + -23

Combine like terms: 23 + -23 = 0
0 + 9x2 = 100 + -23
9x2 = 100 + -23

Combine like terms: 100 + -23 = 77
9x2 = 77

Divide each side by '9'.
x2 = 8.555555556

Simplifying
x2 = 8.555555556

Take the square root of each side:
x = {-2.924988129, 2.924988129}