(-6+2i)(7+i)=

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Solution for (-6+2i)(7+i)= equation:


Simplifying
(-6 + 2i)(7 + i) = 0

Multiply (-6 + 2i) * (7 + i)
(-6(7 + i) + 2i * (7 + i)) = 0
((7 * -6 + i * -6) + 2i * (7 + i)) = 0
((-42 + -6i) + 2i * (7 + i)) = 0
(-42 + -6i + (7 * 2i + i * 2i)) = 0
(-42 + -6i + (14i + 2i2)) = 0

Combine like terms: -6i + 14i = 8i
(-42 + 8i + 2i2) = 0

Solving
-42 + 8i + 2i2 = 0

Solving for variable 'i'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-21 + 4i + i2) = 0

Factor a trinomial.
2((-7 + -1i)(3 + -1i)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-7 + -1i)' equal to zero and attempt to solve: Simplifying -7 + -1i = 0 Solving -7 + -1i = 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 + -1i = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -1i = 0 + 7 -1i = 0 + 7 Combine like terms: 0 + 7 = 7 -1i = 7 Divide each side by '-1'. i = -7 Simplifying i = -7

Subproblem 2

Set the factor '(3 + -1i)' equal to zero and attempt to solve: Simplifying 3 + -1i = 0 Solving 3 + -1i = 0 Move all terms containing i to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1i = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1i = 0 + -3 -1i = 0 + -3 Combine like terms: 0 + -3 = -3 -1i = -3 Divide each side by '-1'. i = 3 Simplifying i = 3

Solution

i = {-7, 3}

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