Question

DAU CORONA DACA IMI REZOLVATI ACESTE EXERCITII SI PUNCTE IN PLUS VA DAU!AJUTATIMA VA ROG!

Answer 1

$3)(4 \sqrt{2} +3 \sqrt{5} - 7\sqrt{2} )*(6 \sqrt{2} -10 \sqrt{5} - 2\sqrt{2} )= \\ =(- 3\sqrt{2} + 3\sqrt{5} )*(4 \sqrt{2} -10 \sqrt{5} )= \\ =-12 \sqrt{4} -30 \sqrt{25} = \\ =-12*2-30*5= \\ =-24-150= \\ =-174$$4)(- \frac{125-12}{90} + \frac{14-1}{90} )*( \frac{12}{1} - \frac{115-11}{90} - \frac{184-18}{90} )= \\ =(- \frac{113}{90} + \frac{13}{90} )*( \frac{12}{1} - \frac{114}{90}- \frac{166}{90} )=(amplificam. \frac{12}{1}.cu.90) \\ = - \frac{100}{90} *( \frac{1080}{90} - \frac{114}{90} - \frac{166}{90} )= \\ =- \frac{100}{90} * \frac{800}{90} = \\ =- \frac{10}{9} * \frac{80}{9} = \\ =- \frac{800}{81}$$1) \frac{16}{1} * \frac{1}{32768} * \frac{1}{16777216} * \frac{1048576}{1} = \\ = \frac{16}{1} * \frac{1}{32768} * \frac{1}{16} =(Am.simplificat.cu.1048576.pe.el.si.16777216) \\ = \frac{1}{32768} (Am.simplificat.cu.16.prima.si.ultima.fractie) \\ 2)[3*25-3*(4+9-1)^3*(4*8-8*4)^4]:225= \\ =(75-3*12^3*0^4):225= \\ =(75-3*1728*0):225= \\ =(75-0):225= \\ = \frac{75}{225} =(simplificam.cu.75) \\ = \frac{1}{3} =0,(3)$