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Question

Solve 4n^2+8n = -15 by completing the square.
Use a comma to separate multiple values.

Question Solve 4n^2+8n = -15 by completing the square. Use a comma to separate multiple-example-1
User Jameen
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1 Answer

10 votes
10 votes

Answer:

No Solutions

Explanation:

First to complete the square, it will need to look something like

a^2+2ab+b^2

so in order to get that we can see that 4n^2+8n seems to be missing a piece.

a is the square root of 4n^2 which is 2n.

8n/2n=4

4/2=2

b=2

so now add 2 to both sides of the equation so now it's

4n^2+8n+4=-13

rewrite as (2n+2)^2=-13

Now you see a negative number as the result of a exponent.

A number squared will never be negative.

Therefore the answer is

No Solutions

User Robert Kajic
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2.8k points