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Simplifying x2 + (7 + a) * x + 7a = 0 Reorder the terms for easier multiplication: x2 + x(7 + a) + 7a = 0 x2 + (7 * x + a * x) + 7a = 0 Reorder the terms: x2 + (ax + 7x) + 7a = 0 x2 + (ax + 7x) + 7a = 0 Reorder the terms: 7a + ax + 7x + x2 = 0 Solving 7a + ax + 7x + x2 = 0 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-7x' to each side of the equation. 7a + ax + 7x + -7x + x2 = 0 + -7x Combine like terms: 7x + -7x = 0 7a + ax + 0 + x2 = 0 + -7x 7a + ax + x2 = 0 + -7x Remove the zero: 7a + ax + x2 = -7x Add '-1x2' to each side of the equation. 7a + ax + x2 + -1x2 = -7x + -1x2 Combine like terms: x2 + -1x2 = 0 7a + ax + 0 = -7x + -1x2 7a + ax = -7x + -1x2 Reorder the terms: 7a + ax + 7x + x2 = -7x + 7x + -1x2 + x2 Combine like terms: -7x + 7x = 0 7a + ax + 7x + x2 = 0 + -1x2 + x2 7a + ax + 7x + x2 = -1x2 + x2 Combine like terms: -1x2 + x2 = 0 7a + ax + 7x + x2 = 0 The solution to this equation could not be determined.
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