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Am nevoie de 20 exercitii rezolvate matematica algebra clasa a6 semestrul 1 va roggggg !! coroana

Răspuns :

Semaka2
SA se calculeze
(-1)³+2·(-2)+[1+(6+2)]=-1-4+(1+8)=-5+9=4
[(-2)²]³=?
[(-2)²]³=4³=64
Ecuatie
2x-1=-5  2x=-5+1
2x=-4   x=-4:2=-2
SA  se   rezolve ecuatia
lx-1l=2
x-1=+/-2  
x-1=-2=> x1= -2+1=-1
x-1=2   x2=1+2=3
_____________
Inecuatie
lxl<3 =>x={,-2,-1,0,1,2}
(5²)·5³+5=?
5^(2+3)+5=5^5+5=3125+5=3130
6^5:6^2=6^(5-2)=6^3=216

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