Answer:
<h2>
a₃₀ = 120</h2>
Step-by-step explanation:

(2 - 7 i) (-1 + 4 i).26 - (32 + 697 i)
This is a 45-90-45 triangle so in order to find the answer we have to multiply the hypotenuse, 6, by the square root of 2 or radical 2. Then multiply top and bottom by radical 2. Then simplify.