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Simplifying (x + 2)(x + -2) = x(x + -3) Reorder the terms: (2 + x)(x + -2) = x(x + -3) Reorder the terms: (2 + x)(-2 + x) = x(x + -3) Multiply (2 + x) * (-2 + x) (2(-2 + x) + x(-2 + x)) = x(x + -3) ((-2 * 2 + x * 2) + x(-2 + x)) = x(x + -3) ((-4 + 2x) + x(-2 + x)) = x(x + -3) (-4 + 2x + (-2 * x + x * x)) = x(x + -3) (-4 + 2x + (-2x + x2)) = x(x + -3) Combine like terms: 2x + -2x = 0 (-4 + 0 + x2) = x(x + -3) (-4 + x2) = x(x + -3) Reorder the terms: -4 + x2 = x(-3 + x) -4 + x2 = (-3 * x + x * x) -4 + x2 = (-3x + x2) Add '-1x2' to each side of the equation. -4 + x2 + -1x2 = -3x + x2 + -1x2 Combine like terms: x2 + -1x2 = 0 -4 + 0 = -3x + x2 + -1x2 -4 = -3x + x2 + -1x2 Combine like terms: x2 + -1x2 = 0 -4 = -3x + 0 -4 = -3x Solving -4 = -3x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3x' to each side of the equation. -4 + 3x = -3x + 3x Combine like terms: -3x + 3x = 0 -4 + 3x = 0 Add '4' to each side of the equation. -4 + 4 + 3x = 0 + 4 Combine like terms: -4 + 4 = 0 0 + 3x = 0 + 4 3x = 0 + 4 Combine like terms: 0 + 4 = 4 3x = 4 Divide each side by '3'. x = 1.333333333 Simplifying x = 1.333333333
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