Question

in care expresii poti elimina parantezele,iar rezultatul sa nu se modifice?
a. (3x9)-(1x4x6)+5
b. (2+2)x2-2:2
c. 7x(60-50)+4
d. 10-(10:10)+(10x10x0)

Answer 1

(3*9)-(1*4*6)+5=27-24+5=8 3*9-1*4*6+5=27-24+5=8 (2+2)*2-2:2=4*2-1=8-1=7 2+2*2-2:2=2+4-1=5 7*(60-50)+4=7*10+4=70+4=74 7*60-50+4=420-50+4=374 10-(10:10)+(10*10*0)=10-1+0=9 10-10:10+10*10*0=10-1+0=9 cele care nu soi schimba rezultatul sunt A si D