Question 158204
({{{-7}}}*{{{sqrt(11)}}} –{{{sqrt(7)}}})({{{sqrt(7)}}} –{{{10}}}{{{sqrt(11)}}})=

 ({{{-7}}}{{{ sqrt(11)}}}* {{{sqrt(7)}}} + {{{10}}}{{{sqrt(11)}}}* {{{7}}}{{{ sqrt(11)}}}   – {{{sqrt(7)}}}* {{{sqrt(7)}}} + {{{sqrt(7)}}}* {{{10}}}{{{sqrt(11)}}})=

({{{-7}}}{{{ sqrt(11*7)}}} + {{{70}}}{{{sqrt(11)^2}}} – {{{sqrt(7)^2}}} + {{{10}}}{{{sqrt(11*7)}}})=

{{{-7}}}{{{ sqrt(77)}}} + {{{70*11}}} – {{{7}}} + {{{10*77}}}=

–(7*8.78) +{{{770}}} –{{{7}}} +{{{770}}}=

–{{{61.46}}} + {{{770}}} –{{{7}}} + {{{770}}}=

 –{{{68.46}}}+ {{{1540}}}=

{{{ 1471.54}}}