(√5+2)/(2√5-1)
3 answers
10.5830052
acting like my lil cousins and siblings "I'm telling!"
More than likely the did not ask for a decimal answer.
A question like this usually asks you to rationalize the denominator,
or to find the "exact" answer
Besides that CAT's answer is incorrect
(√5+2)/(2√5-1)
= (√5+2)/(2√5-1) * (2√5 + 1)/(2√5 + 1)
= (10 + √5 + 4√5 + 2)/(20 - 1)
= (12 + 5√5)/19
A question like this usually asks you to rationalize the denominator,
or to find the "exact" answer
Besides that CAT's answer is incorrect
(√5+2)/(2√5-1)
= (√5+2)/(2√5-1) * (2√5 + 1)/(2√5 + 1)
= (10 + √5 + 4√5 + 2)/(20 - 1)
= (12 + 5√5)/19