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Simplifying [x + -1(8 + 5i)][x + -1(8 + -5i)] = 0 [x + (8 * -1 + 5i * -1)][x + -1(8 + -5i)] = 0 [x + (-8 + -5i)][x + -1(8 + -5i)] = 0 Reorder the terms: [-8 + -5i + x][x + -1(8 + -5i)] = 0 [-8 + -5i + x][x + (8 * -1 + -5i * -1)] = 0 [-8 + -5i + x][x + (-8 + 5i)] = 0 Reorder the terms: [-8 + -5i + x][-8 + 5i + x] = 0 Multiply [-8 + -5i + x] * [-8 + 5i + x] [-8[-8 + 5i + x] + -5i * [-8 + 5i + x] + x[-8 + 5i + x]] = 0 [[-8 * -8 + 5i * -8 + x * -8] + -5i * [-8 + 5i + x] + x[-8 + 5i + x]] = 0 [[64 + -40i + -8x] + -5i * [-8 + 5i + x] + x[-8 + 5i + x]] = 0 [64 + -40i + -8x + [-8 * -5i + 5i * -5i + x * -5i] + x[-8 + 5i + x]] = 0 Reorder the terms: [64 + -40i + -8x + [40i + -5ix + -25i2] + x[-8 + 5i + x]] = 0 [64 + -40i + -8x + [40i + -5ix + -25i2] + x[-8 + 5i + x]] = 0 [64 + -40i + -8x + 40i + -5ix + -25i2 + [-8 * x + 5i * x + x * x]] = 0 Reorder the terms: [64 + -40i + -8x + 40i + -5ix + -25i2 + [5ix + -8x + x2]] = 0 [64 + -40i + -8x + 40i + -5ix + -25i2 + [5ix + -8x + x2]] = 0 Reorder the terms: [64 + -40i + 40i + -5ix + 5ix + -25i2 + -8x + -8x + x2] = 0 Combine like terms: -40i + 40i = 0 [64 + 0 + -5ix + 5ix + -25i2 + -8x + -8x + x2] = 0 [64 + -5ix + 5ix + -25i2 + -8x + -8x + x2] = 0 Combine like terms: -5ix + 5ix = 0 [64 + 0 + -25i2 + -8x + -8x + x2] = 0 [64 + -25i2 + -8x + -8x + x2] = 0 Combine like terms: -8x + -8x = -16x [64 + -25i2 + -16x + x2] = 0 Solving 64 + -25i2 + -16x + x2 = 0 Solving for variable 'i'. Move all terms containing i to the left, all other terms to the right. Add '-64' to each side of the equation. 64 + -25i2 + -16x + -64 + x2 = 0 + -64 Reorder the terms: 64 + -64 + -25i2 + -16x + x2 = 0 + -64 Combine like terms: 64 + -64 = 0 0 + -25i2 + -16x + x2 = 0 + -64 -25i2 + -16x + x2 = 0 + -64 Combine like terms: 0 + -64 = -64 -25i2 + -16x + x2 = -64 Add '16x' to each side of the equation. -25i2 + -16x + 16x + x2 = -64 + 16x Combine like terms: -16x + 16x = 0 -25i2 + 0 + x2 = -64 + 16x -25i2 + x2 = -64 + 16x Add '-1x2' to each side of the equation. -25i2 + x2 + -1x2 = -64 + 16x + -1x2 Combine like terms: x2 + -1x2 = 0 -25i2 + 0 = -64 + 16x + -1x2 -25i2 = -64 + 16x + -1x2 Divide each side by '-25'. i2 = 2.56 + -0.64x + 0.04x2 Simplifying i2 = 2.56 + -0.64x + 0.04x2 Reorder the terms: -2.56 + i2 + 0.64x + -0.04x2 = 2.56 + -0.64x + 0.04x2 + -2.56 + 0.64x + -0.04x2 Reorder the terms: -2.56 + i2 + 0.64x + -0.04x2 = 2.56 + -2.56 + -0.64x + 0.64x + 0.04x2 + -0.04x2 Combine like terms: 2.56 + -2.56 = 0.00 -2.56 + i2 + 0.64x + -0.04x2 = 0.00 + -0.64x + 0.64x + 0.04x2 + -0.04x2 -2.56 + i2 + 0.64x + -0.04x2 = -0.64x + 0.64x + 0.04x2 + -0.04x2 Combine like terms: -0.64x + 0.64x = 0.00 -2.56 + i2 + 0.64x + -0.04x2 = 0.00 + 0.04x2 + -0.04x2 -2.56 + i2 + 0.64x + -0.04x2 = 0.04x2 + -0.04x2 Combine like terms: 0.04x2 + -0.04x2 = 0.00 -2.56 + i2 + 0.64x + -0.04x2 = 0.00 The solution to this equation could not be determined.
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