1.

Rationalise denominator of ​

Answer»

ong>ANSWER:

Answer is 72+18root UPON WHOLE 11

Step-by-step explanation:

1.

\frac{18}{4 - \sqrt{7} ?} \times \frac{4 + \sqrt{7} }{4 + \sqrt{7} ?}

After this we multiply that both equations

then we GET 72+18root 7 upon whole 4^2-root7^2

72+18root7upon whole 16-7

then 72+18root 7 upon whole 11


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