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Simplifying
25x2 + 4 = 40
Reorder the terms:
4 + 25x2 = 40
Solving
4 + 25x2 = 40
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-4' to each side of the equation.
4 + -4 + 25x2 = 40 + -4
Combine like terms: 4 + -4 = 0
0 + 25x2 = 40 + -4
25x2 = 40 + -4
Combine like terms: 40 + -4 = 36
25x2 = 36
Divide each side by '25'.
x2 = 1.44
Simplifying
x2 = 1.44
Take the square root of each side:
x = {-1.2, 1.2}
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