Question

Homework help, one of the few I have

Answer 1

X = 4, solution is not extraneous

Explanation:

3 = √9

so we get the following comparison;

2X + 1 = 9 (both minus 1)

2X = 8 (divide by 2)

X = 4

if we fill in 4 for X. we get

√2•4+ 1 = √9 = 3 so the solution is not extraneous

Answer 2

x=4 and the solution is not extraneous

Explanation:

`√(2x+1)=3 \\\\2x+1=9 \\\\2x=8 \\\\x=4`

This solution is not extraneous, because plugging it back in you get:

`√(2(4)+1)=3 \\\\√(9)=3 \\\\3=3`

Hope this helps!