SOLUTION: (-3 - √-7)^2 Write in standard form. I got 6

SOLUTION: (-3 - √-7)^2 Write in standard form. I got 6 - 2√7i Thanks for your help!

Question 54531: (-3 - √-7)^2 Write in standard form.
I got 6 - 2√7i
Thanks for your help!
Found 2 solutions by stanbon, funmath:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
(-3 - √-7)^2
=(-3^2)-2(-3)(sqrt(-7)+(sqrt(-7))^2
=9+6isqrt7-7
=2+(6sqrt7)i
Cheers,
Stan H.
Answer by funmath(2933) (Show Source): You can put this solution on YOUR website!
You are really close.

Remember:

Happy Calculating!!!

RELATED QUESTIONS
I need help mulitplying this: (√[6] + 2√[2])(4√[6] � 3√[2]) (answered by jim_thompson5910)
i(2+7i)(2-7i) write in standard form (answered by AnlytcPhil)
Evaluate the expression and write in the result of a+bi... (answered by solver91311)
2√(8)-√(50)+3√(6)+5√(32) Simplify in radical... (answered by Gogonati)
PLEASE PLEASE PLEASE PLEASE PLEASE HELP ME. √(2)[√(4y) - √(18)]... (answered by stanbon)
Hi, Can someone help me please? write a quadratic equation in the variable x having... (answered by josmiceli)
Hi, Can someone help me please? write a quadratic equation in the variable x having (answered by solver91311)
Multiply: (8√[6] + 3√[2])(4√[6] � 5√[2])... (answered by MathLover1)
Write your answer in simplest a+bi form: (√(-49) √25)/(-√(-100))... (answered by MathLover1)

SOLUTION: (-3 - &#8730;-7)^2 Write in standard form. I got 6 - 2&#8730;7i Thanks for your help!

SOLUTION: (-3 - √-7)^2 Write in standard form. I got 6 - 2√7i Thanks for your help!