a) 11+8•{45+4•[3+8•(12•13-8•14)-37]}+1234=
=11+8•{45+4•[3+8•(156-112)-37]}+1234=
=11+8•[45+4•(3+8•44-36)]+1234=
=11+8•[45+4•(3+352-36)]+1234=
=11+8•(45+4•319)+1234=
=11+8•(45+1276)+1234=
=11+8•1321+1234=
=11+10568+1234=
=11813
b) (32•15-32•5)+11•12+7•{124-5•[210-2•(23•17-24•12)]}=
=(480-160)+11•12+7•{124-5•[210-2•(391-288)]}=
=320+11•12+7•[124-5•(210-2•103)]=
=320+132+7•[124-5•(210-206)]=
=320+132+7•(124-5•4)=
=320+132+7•(124-20)=
=320+132+7•104=
=320+132+728=
=1180
c) 12+12•{12+12•[12+12•(12•12-122)]}+12•12=
=12+12•{12+12•[12+12•(144-122)]}+144=
=12+12•[12+12•(12+12•22)]+144=
=12+12•[12+12•(12+264)]+144=
=12+12•(12+12•276)+144=
=12+12•(12+3312)+144=
=12+12•3324+144=
=12+39888+144=
=40044
d) [100-3•(13•19-12•18)]•{1+2•[3+4•(5+6•7)]}=
=[100-3•(247-216)]•{1+2•[3+4•(5+42)]}=
=(100-3•31)•[1+2•(3+4•47)=
=(100-96)•(1+2•191)=
=4•383=
=1532
e) 2483-23•[15+5•(127-119)]+32•[174-5•(345-328)]=
=2483-23•(15+5•8)+32•(174-5•17)=
=2483-23•55+32•89=
=2483-1265+2848=
=4066
f) {[19•6-107+12•8]•2-176}+[5467-16•(324-319)]=
={[114-107+96]•2-176}+(5467-16•5)=
=[(133•2-176)]+5547=
=(266-176)+5547=
=90+5547=
=5637
SPER CĂ TE-AM AJUTAT!