4x+(x+3i)(x-3i)-5x+7=

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Solution for 4x+(x+3i)(x-3i)-5x+7= equation:


Simplifying
4x + (x + 3i)(x + -3i) + -5x + 7 = 0

Reorder the terms:
4x + (3i + x)(x + -3i) + -5x + 7 = 0

Reorder the terms:
4x + (3i + x)(-3i + x) + -5x + 7 = 0

Multiply (3i + x) * (-3i + x)
4x + (3i * (-3i + x) + x(-3i + x)) + -5x + 7 = 0
4x + ((-3i * 3i + x * 3i) + x(-3i + x)) + -5x + 7 = 0

Reorder the terms:
4x + ((3ix + -9i2) + x(-3i + x)) + -5x + 7 = 0
4x + ((3ix + -9i2) + x(-3i + x)) + -5x + 7 = 0
4x + (3ix + -9i2 + (-3i * x + x * x)) + -5x + 7 = 0
4x + (3ix + -9i2 + (-3ix + x2)) + -5x + 7 = 0

Reorder the terms:
4x + (3ix + -3ix + -9i2 + x2) + -5x + 7 = 0

Combine like terms: 3ix + -3ix = 0
4x + (0 + -9i2 + x2) + -5x + 7 = 0
4x + (-9i2 + x2) + -5x + 7 = 0

Reorder the terms:
7 + -9i2 + 4x + -5x + x2 = 0

Combine like terms: 4x + -5x = -1x
7 + -9i2 + -1x + x2 = 0

Solving
7 + -9i2 + -1x + x2 = 0

Solving for variable 'i'.

Move all terms containing i to the left, all other terms to the right.

Add '-7' to each side of the equation.
7 + -9i2 + -1x + -7 + x2 = 0 + -7

Reorder the terms:
7 + -7 + -9i2 + -1x + x2 = 0 + -7

Combine like terms: 7 + -7 = 0
0 + -9i2 + -1x + x2 = 0 + -7
-9i2 + -1x + x2 = 0 + -7

Combine like terms: 0 + -7 = -7
-9i2 + -1x + x2 = -7

Add 'x' to each side of the equation.
-9i2 + -1x + x + x2 = -7 + x

Combine like terms: -1x + x = 0
-9i2 + 0 + x2 = -7 + x
-9i2 + x2 = -7 + x

Add '-1x2' to each side of the equation.
-9i2 + x2 + -1x2 = -7 + x + -1x2

Combine like terms: x2 + -1x2 = 0
-9i2 + 0 = -7 + x + -1x2
-9i2 = -7 + x + -1x2

Divide each side by '-9'.
i2 = 0.7777777778 + -0.1111111111x + 0.1111111111x2

Simplifying
i2 = 0.7777777778 + -0.1111111111x + 0.1111111111x2

Reorder the terms:
-0.7777777778 + i2 + 0.1111111111x + -0.1111111111x2 = 0.7777777778 + -0.1111111111x + 0.1111111111x2 + -0.7777777778 + 0.1111111111x + -0.1111111111x2

Reorder the terms:
-0.7777777778 + i2 + 0.1111111111x + -0.1111111111x2 = 0.7777777778 + -0.7777777778 + -0.1111111111x + 0.1111111111x + 0.1111111111x2 + -0.1111111111x2

Combine like terms: 0.7777777778 + -0.7777777778 = 0.0000000000
-0.7777777778 + i2 + 0.1111111111x + -0.1111111111x2 = 0.0000000000 + -0.1111111111x + 0.1111111111x + 0.1111111111x2 + -0.1111111111x2
-0.7777777778 + i2 + 0.1111111111x + -0.1111111111x2 = -0.1111111111x + 0.1111111111x + 0.1111111111x2 + -0.1111111111x2

Combine like terms: -0.1111111111x + 0.1111111111x = 0.0000000000
-0.7777777778 + i2 + 0.1111111111x + -0.1111111111x2 = 0.0000000000 + 0.1111111111x2 + -0.1111111111x2
-0.7777777778 + i2 + 0.1111111111x + -0.1111111111x2 = 0.1111111111x2 + -0.1111111111x2

Combine like terms: 0.1111111111x2 + -0.1111111111x2 = 0.0000000000
-0.7777777778 + i2 + 0.1111111111x + -0.1111111111x2 = 0.0000000000

The solution to this equation could not be determined.

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