SOLUTION: Can you please help me find the solution: {{{ (-2+ radical -4)2 }}} Me: (-2+i radical 4)2 Me: (-2)2+2(-2)(i radical 4)+(i radical 4)2 Me: 4-4i radical 4 + 4i(squared) I kn

Question 202871This question is from textbook college algebra
: Can you please help me find the solution:
Me: (-2+i radical 4)2
Me: (-2)2+2(-2)(i radical 4)+(i radical 4)2
Me: 4-4i radical 4 + 4i(squared)
I know this is wrong... This question is from textbook college algebra

Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
I'm assuming that the expression is right????

Start with the given expression.

Factor

Break up the square root.

Replace with "i". Take the square root of 4 to get 2.

Rearrange the terms.

FOIL.

Multiply.

Replace with . Note: .

Multiply.

Combine like terms.

So .
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