i(2+7i)(2-7i)=0

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Solution for i(2+7i)(2-7i)=0 equation:


Simplifying
i(2 + 7i)(2 + -7i) = 0

Multiply (2 + 7i) * (2 + -7i)
i(2(2 + -7i) + 7i * (2 + -7i)) = 0
i((2 * 2 + -7i * 2) + 7i * (2 + -7i)) = 0
i((4 + -14i) + 7i * (2 + -7i)) = 0
i(4 + -14i + (2 * 7i + -7i * 7i)) = 0
i(4 + -14i + (14i + -49i2)) = 0

Combine like terms: -14i + 14i = 0
i(4 + 0 + -49i2) = 0
i(4 + -49i2) = 0
(4 * i + -49i2 * i) = 0
(4i + -49i3) = 0

Solving
4i + -49i3 = 0

Solving for variable 'i'.

Factor out the Greatest Common Factor (GCF), 'i'.
i(4 + -49i2) = 0

Factor a difference between two squares.
i((2 + 7i)(2 + -7i)) = 0

Subproblem 1

Set the factor 'i' equal to zero and attempt to solve: Simplifying i = 0 Solving i = 0 Move all terms containing i to the left, all other terms to the right. Simplifying i = 0

Subproblem 2

Set the factor '(2 + 7i)' equal to zero and attempt to solve: Simplifying 2 + 7i = 0 Solving 2 + 7i = 0 Move all terms containing i to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + 7i = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 7i = 0 + -2 7i = 0 + -2 Combine like terms: 0 + -2 = -2 7i = -2 Divide each side by '7'. i = -0.2857142857 Simplifying i = -0.2857142857

Subproblem 3

Set the factor '(2 + -7i)' equal to zero and attempt to solve: Simplifying 2 + -7i = 0 Solving 2 + -7i = 0 Move all terms containing i to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -7i = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -7i = 0 + -2 -7i = 0 + -2 Combine like terms: 0 + -2 = -2 -7i = -2 Divide each side by '-7'. i = 0.2857142857 Simplifying i = 0.2857142857

Solution

i = {0, -0.2857142857, 0.2857142857}

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