Question

5* корень из 2 2*корень из32-корень из98

Answer 1

=5кор.кв.(2 . 11 .16 . 2)-кор.кв.(49 . 2)=40кор.кв.11- 7кор.кв.2.

Answer 2

$5cdotsqrt{22}cdotsqrt{32}-sqrt{98}=5cdotsqrt{22cdot32}-sqrt{98}=5cdotsqrt{704}-sqrt{98}=5cdotsqrt{64cdot11}-sqrt{49cdot2}=5cdot8cdotsqrt{11}-7sqrt{2}= 40sqrt{11}-7sqrt{2}$