Question

2.
Simplify:
28/
root28-root7​

Answer 1

Answer:28/root28-root7

we can take out by rationalising

Step-by-step explanation: 28 x root28 + root 7 / root28-root7​ x  root28 + root 7

denominator = root 28 sq - root 7 sq

by using the property (a-b)(a+b)= a sq -bsq

= 28 - 7

= 21

answer : 28 x root28 + root 7 / 21