7+4x^2=407

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Solution for 7+4x^2=407 equation: 


Simplifying
7 + 4x2 = 407

Solving
7 + 4x2 = 407

Solving for variable 'x'.

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

Add '-7' to each side of the equation.
7 + -7 + 4x2 = 407 + -7

Combine like terms: 7 + -7 = 0
0 + 4x2 = 407 + -7
4x2 = 407 + -7

Combine like terms: 407 + -7 = 400
4x2 = 400

Divide each side by '4'.
x2 = 100

Simplifying
x2 = 100

Take the square root of each side:
x = {-10, 10}

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