Verified Answer :

n^4 - 11 n² + 30 = ( n² - 6 ) ( n² - 5 )
n^4 - 7 n² + 10 = ( n² - 2 ) ( n² - 5 )
( n² - 6 ) ( n² - 5 ) / ( n² - 2 ) ( n² - 5 )= \(\frac{ n^{2} -6}{n ^{2} -2}\)

Answer:

\(\frac{n^{2}-5}{n^{2}-2}\)

Step-by-step explanation:

The rational expression is \(\frac{n^{4}-11n^{2}+30}{n^{4}-7n^{2}+10}\)

Now we will simplify numerator first

\(n^{4}-11n^{2}+30\)

=\(n^{4}-11n^{2}+30=n^{4}-6n^{2}-5n^{2}+30\)

\(=n^{2}(n^{2}-6)-5(n^{2}-6)=(n^{2}-5)(n^{2}-6)\)

Now we will simplify the denominator

\(n^{4}-7n^{2}+10=n^{4}-5n^{2}-2n^{2}+10\)

\(=n^{2}(n^{2}-5)-2(n^{2}-5)=(n^{2}-2)(n^{2}-5)\)

Now the fraction becomes

\(\frac{(n^{2}-5)(n^{2}-6)}{(n^{2}-2)(n^{2}-6)}=\frac{n^{2}-5}{n^{2}-2}\)

So the answer is \(\frac{n^{2}-5}{n^{2}-2}\)