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Check all that apply x^2+8x+16=2
Help me please!!

Check all that apply x^2+8x+16=2 Help me please!!-example-1
User Eironeia
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2 Answers

3 votes

Your equation is already a perfect square, so we don't have to complete anything:


x^2+8x+16 = (x+4)^2

So, we can write the equation as


(x+4)^2=2

Which is true if and only if


x+4 = √(2) \lor x+4=-√(2) \iff x = √(2)-4 \lor x = -2-√(4)

User Mukesh
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5.3k points
3 votes

Answer:

A

Explanation:

User Dhaval Panchal
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5.7k points