Processing Math: Done

From Förberedande kurs i matematik 1

First, we multiply the tops and bottoms of the two terms by the conjugate of their respective denominators, so that there are no root signs left in the denominators,

16−517−6=16−56+56+5=6+5(6)2−(5)2=6−56+5=6+5=17−67+67+6=7+6(7)2−(6)2=7−67+6=7+6.

Now, we can subtract the terms and simplify the result,

16−5−17−6=6+5−(7+6)=6+5−7−6=5−7.