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ma puteti ajuta si pe mine la exercitiul asta........Scoateti factorul comun apoi calculati.....a.3x3+3x5..........b. 6x11+6x7+6x9.........c.6+12+36..........d. 4x13-4x7.......e. 99-66.........f. 24x6-6x4...........g. 8x5-5x7+6x5

Răspuns :

Nonim
a)3x3+3x5=3(3+5)=3x8=24
b)6x11+6x7+6x9=6(11+7+9)=6x27=162
c)6+12+36=6x1+6x2+6x6=6(1+2+6)=6x8=48
d)4x13-4x7=4(13-7)=4x6=24
e)99-66=33x3-33x2=33(3-2)=33x1=33
f)24x6-6x4=6(24-4)=6x20=120
g)8x5-5x7+6x5=5(8-7+6)=5x7=35
sper ca te-am ajutat
Camitza2004
a)3(3+5)=3x8=24
b)6(11+7+9)=6x27=162
c)3x2+3x4+3x12=3(2+4+12)=3x18=54
d)4(13+7)=4x20=80
e)33x3-33x2=33(3-2)=33x1=33
f)6(24-4)=6x20=120
g)5(8-7+6)=5x7=35

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