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Simplifying
x(5x + 12x) = 28
Combine like terms: 5x + 12x = 17x
x(17x) = 28
Remove parenthesis around (17x)
x * 17x = 28
Reorder the terms for easier multiplication:
17x * x = 28
Multiply x * x
17x2 = 28
Solving
17x2 = 28
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Divide each side by '17'.
x2 = 1.647058824
Simplifying
x2 = 1.647058824
Take the square root of each side:
x = {-1.283377896, 1.283377896}
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