How do you simplify $(- 6 + 5 i) (7 - 5 i) (6 + 6 i)$ $(-6+5i)(7-5i)(6+6i)$ ?

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Answer 1 · 2017-07-21T16:38:49

$- 102 (1 + i)$ $-102(1+i)$

$(- 6 + 5 i) (7 - 5 i) (6 + 6 i) =$ $(-6+5i)(7-5i)(6+6i)=$

$(- 42 + 30 i + 35 i - 25 i^{2}) (6 + 6 i) =$ $(-42+30i+35i-25i^2)(6+6i)=$

$(- 42 + 65 i + 25) (6 + 6 i) =$ $(-42+65i+25)(6+6i)=$

$(- 17 + 65 i) (6 + 6 i) =$ $(-17+65i)(6+6i)=$

$(- 102 - 102 i + 390 + 390 i^{2}) =$ $(-102-102i+390+390i^2)=$

$- 102 (1 + i)$ $-102(1+i)$

How do you simplify (−6+5i)(7−5i)(6+6i)(-6+5i)(7-5i)(6+6i)?