Question

%7D%20%20-%20n%20%7B%7D%5E%7B2%7D%20%7D%20" id="TexFormula1" title=" \frac{1}{m - n} - \frac{m + n}{m {}^{2} - n {}^{2} } " alt=" \frac{1}{m - n} - \frac{m + n}{m {}^{2} - n {}^{2} } " align="absmiddle" class="latex-formula">
​

Answer 1

Answer:

$\frac{1}{m - n} - \frac{m + n}{m {}^{2} - n {}^{2} }$

Factor if necessary:

x²-y²=(x+y)(x-y) use this formula

$\frac{1}{m - n} - \frac{m + n}{ {(m + n)(m - n)}}$

$\frac{1}{m - n} - \frac{1}{ {(m - n)}}$

Take lcm and subtract:

=0

Answer 2

Answer:

0

Step-by-step explanation:

We need to simplify the given expression . The given expression is ,

→ 1/ ( m - n) - (m + n)/ ( m² - n² )

→ 1/ ( m - n) - ( m + n)/(m+n)(m-n)

• Using a² - b² = (a+b)(a-b)
• Now cancel m+n in numerator and denominator .

→ 1/( m - n) - 1/ ( m - n)

→ 0

Hence the required answer is 0 .