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October 20, 2014

October 20, 2014

Posted by **Lala** on Wednesday, February 16, 2011 at 8:34pm.

√(2x+1)+7= 3

-7 -7

√(2x+1)= -4

Square everything

√(2x+1)^2= -4^2

2x+1=16

-1 -1

2x=15

divide by 2 on both sides

x=7.5

CHECK: (Plug it in)

√(2(7.5)+1)+7= 3

√(16)+7= 3

4+7=3

11 doesn't equal 3

so the answer is no solution? right?

- Math- Algebra II -
**helper**, Wednesday, February 16, 2011 at 8:47pmcorrect, no solution

- Math- Algebra II -
**Lala**, Wednesday, February 16, 2011 at 8:48pmThank you so much!

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