√2√2√14 - 3√98 - √3√21

= 2√14 - 3√98 - 3√7

= 2√14 - 21√2 - 3√7

√2√2√14-3√98-√3√21

= √56-3√98-√63

= 2√14 - 3√49√2 -√9√7

= 2√14-3(7)(√2) -3√7

= 2√14 -21√2-3√7

√2√2√14-3√98-√3√21

2√2√7 – 3√2√49 – √3√3√7

2√2√7 – 3•7√2 – 3√7

2√2√7 – 21√2 – 3√7