Question

2. Simplify:28 / root28 -root 7​

Answer 1

28/(root 28 - root 7)

28/[(2 root 7 - root 7)]

(7*4)/(root 7)

4 root 7

I hope this helps you and please mark me the brainliest .

Answer 2

Answer:

= 4√7

Step-by-step explanation:

$=> \frac{28}{\sqrt{28} -\sqrt{7} } \\\\=> \frac{28}{\sqrt{(4)(7)}-\sqrt{7} } \\\\=> \frac{28}{2\sqrt{7}-\sqrt{7}} \\\\=> \frac{28}{(2-1)(\sqrt{7})} \\\\=> \frac{28}{\sqrt{7}} \\\\=> \frac{28}{\sqrt{7}} (\frac{\sqrt{7}}{\sqrt{7}} ) \\\\=> \frac{28\sqrt{7}}{\sqrt{7}^{2}} \\\\=> \frac{28\sqrt{7}}{7} \\\\=> 4\sqrt{7}$