1.3=x^2+0.3

Solution for 1.3=x^2+0.3 equation:

Simplifying
1.3 = x2 + 0.3

Reorder the terms:
1.3 = 0.3 + x2

Solving
1.3 = 0.3 + x2

Solving for variable 'x'.

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

Add '-1x2' to each side of the equation.
1.3 + -1x2 = 0.3 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
1.3 + -1x2 = 0.3 + 0
1.3 + -1x2 = 0.3

Add '-1.3' to each side of the equation.
1.3 + -1.3 + -1x2 = 0.3 + -1.3

Combine like terms: 1.3 + -1.3 = 0.0
0.0 + -1x2 = 0.3 + -1.3
-1x2 = 0.3 + -1.3

Combine like terms: 0.3 + -1.3 = -1
-1x2 = -1

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

Simplifying
x2 = 1

Take the square root of each side:
x = {-1, 1}