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Simplifying (4x)(-4x) = 84 Remove parenthesis around (4x) 4x(-4x) = 84 Remove parenthesis around (-4x) 4x * -4x = 84 Reorder the terms for easier multiplication: 4 * -4x * x = 84 Multiply 4 * -4 -16x * x = 84 Multiply x * x -16x2 = 84 Solving -16x2 = 84 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Divide each side by '-16'. x2 = -5.25 Simplifying x2 = -5.25 Reorder the terms: 5.25 + x2 = -5.25 + 5.25 Combine like terms: -5.25 + 5.25 = 0.00 5.25 + x2 = 0.00 The solution to this equation could not be determined.
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