Problem
Solution
For this case we can do the following:
![(4+\sqrt[]{-49})-2(\sqrt[]{(-4)^2}+\sqrt[]{-324})\text{ }](https://img.qammunity.org/2023/formulas/mathematics/high-school/nqtghbrvpyzv6e96pyqcvliunlk1yanyux.png)
We also know that :
![\sqrt[]{-1}=i](https://img.qammunity.org/2023/formulas/mathematics/high-school/6auedmvsax8nlo4hpms2kngcv15a6lmlel.png)
Using this property we got:

Now we can distirbute the terms and we got:
4+7i -8 -36 i
And distributing the terms we got:
(7-36)i +(4-8)
-29 i -4
And then our solution would be:
a= -29
b= -4