Answer:(2x + 9i)(2x - 9i)
Step-by-step explanation:
a^2 - b^2 = (a+b)(a-b)
a^2 + b^2 = (a+bi)(a-bi) = a^2 + abi - abi - b^2 i^2
But -b^2 i^2 = +b^2
Answer:
c
you would have to estimate bc you won't get an exact measurement . hope this helpssss. brainliest?
The simplified form of the given expression would be .
Hope this helps!
