Find the product or quotient. Write the answer in standard form.
-$$( 8 + 9 i ) ( 5 + 4 i )$$
A) $4 - 77 \mathrm { i }$
B) $36 i ^ { 2 } + 77 i + 40$
C) $76 + 13 \mathrm { i }$
D) $4 + 77 i$

Question

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The Answer of Find the product or quotient. Write the answer in standard form.
-$$( 8 + 9 i ) ( 5 + 4 i )$$
A) $4 - 77 \mathrm { i }$
B) $36 i ^ { 2 } + 77 i + 40$
C) $76 + 13 \mathrm { i }$
D) $4 + 77 i$

Find the Product or Quotient (8+9i)(5+4i)( 8 + 9 i ) ( 5 + 4 i )(8+9i)(5+4i)

Find the Product or Quotient $( 8 + 9 i ) ( 5 + 4 i )$