- #1
r0bHadz
- 194
- 17
Homework Statement
[itex] \frac {\sqrt{2x+3}+1}4 [/itex]
Homework Equations
The Attempt at a Solution
[itex] \frac {\sqrt{2x+3}+1}4 [/itex] * [itex] \frac {\sqrt{2x+3}-1}{\sqrt{2x+3}-1} [/itex] = [itex] \frac {2x+3-1}{4\sqrt{2x+3}-4}[/itex] = [itex] \frac {2x+2}{4\sqrt{2x+3}-4} [/itex] = [itex] \frac {2(x+1)}{2(2\sqrt{2x+3}-2)} [/itex] = [itex]\frac {x+1}{2\sqrt{2x+3} -2} [/itex]
but doc. Lang is telling me the answer is [itex]\frac {x+1}{2(\sqrt{2x+3}-2)} [/itex]
How did he come to this result??