25x^2-9=16

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Solution for 25x^2-9=16 equation: 


Simplifying
25x2 + -9 = 16

Reorder the terms:
-9 + 25x2 = 16

Solving
-9 + 25x2 = 16

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + 25x2 = 16 + 9

Combine like terms: -9 + 9 = 0
0 + 25x2 = 16 + 9
25x2 = 16 + 9

Combine like terms: 16 + 9 = 25
25x2 = 25

Divide each side by '25'.
x2 = 1

Simplifying
x2 = 1

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

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