3-5x^2=42

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Solution for 3-5x^2=42 equation:


Simplifying
3 + -5x2 = 42

Solving
3 + -5x2 = 42

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + -5x2 = 42 + -3

Combine like terms: 3 + -3 = 0
0 + -5x2 = 42 + -3
-5x2 = 42 + -3

Combine like terms: 42 + -3 = 39
-5x2 = 39

Divide each side by '-5'.
x2 = -7.8

Simplifying
x2 = -7.8

Reorder the terms:
7.8 + x2 = -7.8 + 7.8

Combine like terms: -7.8 + 7.8 = 0.0
7.8 + x2 = 0.0

The solution to this equation could not be determined.

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