Which detail should be included in a summary of Elizabeth Van Lew’s role as a spymaster during the Civil War? She was born in the year 1818. Her home was used as a safe house. In 1864, she sent three messages weekly. She put a message inside an empty eggshell.

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8

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step-by-step explanation:

step-by-step explanation:

given expression is .

now we need to simplify the given expression .

we know that square root is equivalent to the power 1/2. so that means we can take half of the exponents to get the square root of given expression.

expanding that will give a very very large number so let's keep answer in exponent form.