Which of the following is the simplified expression of 2 square root of -16 + the square root of 225 in standard form, a plus b i ?

The standard form like will be:  

Step-by-step explanation:

Given expression is:  

First factoring out -16 as (-1×16) , we will get....

Now, replacing as   .......

Finally, simplifying the radicals in the above expression, we will get......

Thus, the standard form like will be:  

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step-by-step explanation:

answer: 590

step-by-step explanation: