Question

under root 5 + 2 under root 6 + under root 8 minus 2 under root 15

Answer 1

Answer: 2.21750789538 OR 2.218 (approx.)

Step-by-step explanation:

√5+2√6+√8-2√15

=>√5+2√6+2√2-2√15

=>√5+2[√6+√2-√15]

=>√5+2[2.44948974278+1.41421356237-3.87298334621]

=>√5-2×0.00928004106

=>√5-0.01856008212

=>2.2360679775-0.01856008212

=> 2.21750789538

=> 2.217 (approx.)