(2+7i)(3-5i)=

Solution for (2+7i)(3-5i)= equation:

Simplifying
(2 + 7i)(3 + -5i) = 0

Multiply (2 + 7i) * (3 + -5i)
(2(3 + -5i) + 7i * (3 + -5i)) = 0
((3 * 2 + -5i * 2) + 7i * (3 + -5i)) = 0
((6 + -10i) + 7i * (3 + -5i)) = 0
(6 + -10i + (3 * 7i + -5i * 7i)) = 0
(6 + -10i + (21i + -35i2)) = 0

Combine like terms: -10i + 21i = 11i
(6 + 11i + -35i2) = 0

Solving
6 + 11i + -35i2 = 0

Solving for variable 'i'.

Factor a trinomial.
(3 + -5i)(2 + 7i) = 0

Subproblem 1
Set the factor '(3 + -5i)' equal to zero and attempt to solve:

Simplifying
3 + -5i = 0

Solving
3 + -5i = 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 + -5i = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -5i = 0 + -3
-5i = 0 + -3

Combine like terms: 0 + -3 = -3
-5i = -3

Divide each side by '-5'.
i = 0.6

Simplifying
i = 0.6
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
Solution
i = {0.6, -0.2857142857}