Question

where i hav done wrong?
^_^ irrelevant or wrong answers will be reported

Answer 1

Hello Dearie!

You were going absolutely correct but went wrong in 4th step. I have done it for you!

$answer = 192 + 18 \sqrt{111}$
Hope it helps☺!✌

Answer 2

$Given : [(23 + 2^2)^ \frac{2}{3} + (140 - 29)^ \frac{1}{2} ]^2$

$= \ \textgreater \ [(27)^ \frac{2}{3} + (111)^ \frac{1}{2} )]^2$

$= \ \textgreater \ [(3^3)^ \frac{2}{3} + (111)^ \frac{1}{2}]^2$

$= \ \textgreater \ [9 + (111)^ \frac{1}{2} ]^2$

381.6.


Hope this helps!