Simplify $( - 4 + i ) ( 4 - 5 i )$

Q71: Determine the zeros (if any) of

Q72: Determine the value that <span

Q73: Simplify <span class="ql-formula" data-value="\frac {

Q74: Find all zeros of the function

Q75: Simplify <span class="ql-formula" data-value="\frac {

Q77: Find a fifth degree polynomial function

Q78: Determine the zeros (if any) of

Q79: Which of the following is the

Q80: Find two positive real numbers whose

Q81: The interest rates that banks charge