15=5x^2+3

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Solution for 15=5x^2+3 equation:


Simplifying
15 = 5x2 + 3

Reorder the terms:
15 = 3 + 5x2

Solving
15 = 3 + 5x2

Solving for variable 'x'.

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

Add '-5x2' to each side of the equation.
15 + -5x2 = 3 + 5x2 + -5x2

Combine like terms: 5x2 + -5x2 = 0
15 + -5x2 = 3 + 0
15 + -5x2 = 3

Add '-15' to each side of the equation.
15 + -15 + -5x2 = 3 + -15

Combine like terms: 15 + -15 = 0
0 + -5x2 = 3 + -15
-5x2 = 3 + -15

Combine like terms: 3 + -15 = -12
-5x2 = -12

Divide each side by '-5'.
x2 = 2.4

Simplifying
x2 = 2.4

Take the square root of each side:
x = {-1.549193338, 1.549193338}

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