(-5+i)(7-9i)=0

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Solution for (-5+i)(7-9i)=0 equation:


Simplifying
(-5 + i)(7 + -9i) = 0

Multiply (-5 + i) * (7 + -9i)
(-5(7 + -9i) + i(7 + -9i)) = 0
((7 * -5 + -9i * -5) + i(7 + -9i)) = 0
((-35 + 45i) + i(7 + -9i)) = 0
(-35 + 45i + (7 * i + -9i * i)) = 0
(-35 + 45i + (7i + -9i2)) = 0

Combine like terms: 45i + 7i = 52i
(-35 + 52i + -9i2) = 0

Solving
-35 + 52i + -9i2 = 0

Solving for variable 'i'.

Factor a trinomial.
(-5 + i)(7 + -9i) = 0

Subproblem 1

Set the factor '(-5 + i)' equal to zero and attempt to solve: Simplifying -5 + i = 0 Solving -5 + i = 0 Move all terms containing i to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + i = 0 + 5 Combine like terms: -5 + 5 = 0 0 + i = 0 + 5 i = 0 + 5 Combine like terms: 0 + 5 = 5 i = 5 Simplifying i = 5

Subproblem 2

Set the factor '(7 + -9i)' equal to zero and attempt to solve: Simplifying 7 + -9i = 0 Solving 7 + -9i = 0 Move all terms containing i to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -9i = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -9i = 0 + -7 -9i = 0 + -7 Combine like terms: 0 + -7 = -7 -9i = -7 Divide each side by '-9'. i = 0.7777777778 Simplifying i = 0.7777777778

Solution

i = {5, 0.7777777778}

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