Math problem from the blue book

Test Preparation SAT Preparation
1

<p>747/#14</p>

<p>g(n)=n^2+n
h(n)=n^2-n</p>

<p>Which of the following is equivalent to h(m+1)?</p>

<hr>

<p>The correct answer is supposed to be A) g(m), but I think it should be B) g(m)+1.
Anyone knows why it's A? Please help, my last shot at the SAT is approaching...</p>

2

<p>h(m+1) = (m+1)^2 - m - 1
= m^2 + 2m + 1 - m - 1
= m^2 + m</p>

<p>g(m) = m^2 + m</p>

<p>Hope that cleared it up. Good luck tomorrow :)</p>

3

<p>Thank you!</p>