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Simplifying (2 + a)(2 + -1b) = 0 Multiply (2 + a) * (2 + -1b) (2(2 + -1b) + a(2 + -1b)) = 0 ((2 * 2 + -1b * 2) + a(2 + -1b)) = 0 ((4 + -2b) + a(2 + -1b)) = 0 (4 + -2b + (2 * a + -1b * a)) = 0 (4 + -2b + (2a + -1ab)) = 0 Reorder the terms: (4 + 2a + -1ab + -2b) = 0 (4 + 2a + -1ab + -2b) = 0 Solving 4 + 2a + -1ab + -2b = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + 2a + -1ab + -4 + -2b = 0 + -4 Reorder the terms: 4 + -4 + 2a + -1ab + -2b = 0 + -4 Combine like terms: 4 + -4 = 0 0 + 2a + -1ab + -2b = 0 + -4 2a + -1ab + -2b = 0 + -4 Combine like terms: 0 + -4 = -4 2a + -1ab + -2b = -4 Add '2b' to each side of the equation. 2a + -1ab + -2b + 2b = -4 + 2b Combine like terms: -2b + 2b = 0 2a + -1ab + 0 = -4 + 2b 2a + -1ab = -4 + 2b Reorder the terms: 4 + 2a + -1ab + -2b = -4 + 2b + 4 + -2b Reorder the terms: 4 + 2a + -1ab + -2b = -4 + 4 + 2b + -2b Combine like terms: -4 + 4 = 0 4 + 2a + -1ab + -2b = 0 + 2b + -2b 4 + 2a + -1ab + -2b = 2b + -2b Combine like terms: 2b + -2b = 0 4 + 2a + -1ab + -2b = 0 The solution to this equation could not be determined.
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