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4x=x^2+6x+9, what do I do next? Subtract 4x?

4x=x^2+6x+9, what do I do next? Subtract 4x?
asked 984 views
5 votes
4x=x^2+6x+9, what do I do next? Subtract 4x?

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User Ozer
by
8.7k points

2 Answers

3 votes
-x^2- 6x+ 4x -9=0
-x^2 - 2x -9=0
D= b^2 - 4ac= 4- 4*1*9= 4- 36= -32-> no solution
answered
User Kevin ABRIOUX
by
8.2k points
5 votes
Yes. Subtract 4x by both sides.

So:
4x = x^2 + 6x + 9
0 = x^2 + 2x + 9
Then you can factorize
0 = (x+1)^2 + 8

answered
User Akathimi
by
7.8k points
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