Question

Calculați, după ce ați scos factorii de sub radical:​

Answer 1

$a)( \sqrt{450} - \sqrt{200} ) - ( \sqrt{1250} - \sqrt{1800} )$

$(15 \sqrt{2} - 10 \sqrt{2} ) - (25 \sqrt{2} - 30 \sqrt{2} )$

$(5 \sqrt{2} ) - ( - 5 \sqrt{2} )$

$5 \sqrt{2} + 5 \sqrt{2}$

$10 \sqrt{2}$

$b) \sqrt{1805} - ( \sqrt{1620} - \sqrt{845} ) - 720$

$19 \sqrt{5} - (18 \sqrt{5} - 13\sqrt{5} ) - 720$

$19 \sqrt{5} - 5 \sqrt{5} - 720$

$14 \sqrt{5} - 720$

$c)\sqrt{160} - ( \sqrt{810} - \sqrt{9610} + \sqrt{6760} )$

$4 \sqrt{10} \div (9 \sqrt{10} - 31 \sqrt{10} + 26 \sqrt{10} )$

$4 \sqrt{10} - 4 \sqrt{10}$

$0$

$d) \sqrt{4375} - ( \sqrt{3087} + \sqrt{4732} - \sqrt{2268} )$

$25\sqrt{7} - (21 \sqrt{7} + 26 \sqrt{7} - 18 \sqrt{7} )$

$25 \sqrt{7} - 29 \sqrt{7}$

$- 4 \sqrt{7}$