Question

if a is equal to 5 minus 2 root 6 then find the value of a cube + 1 upon a cube​

Answer 1

Answer:

Step-by-step explanation:

x=5-2√6

Then 1/x=5+2√6. ( by rationalization)  

(5-2√6)²+(5+2√6)²

25+24-20√6+ 25+ 24+20√6

25+24+25+24

50+48

98 is your answer

Answer 2

Answer:

Step-by-step explanation: