Question

Calculati :
a) -3*[1-3*(-3+2*5)]
b)-5*[-1+2*(-7+3*5)+6]

Va rog cat mai repede!!!!

Answer 1

a) -3×[1-3×(-3+10)]=-3×(1-3×7)=
-3×(1-21)=-3×(-20)=60
b)-5×[-1+2×(-7+15)+6]=
-5×(-1+2×8+6)=
-5×(-1+16+6)=
-5×21=-105

Answer 2

[tex]a=-3*[1-3*(-3+2*5)]= \\ =-3*[1-3*(-3+10)]= \\ =-3*(1-3*7) \\ =-3*(1-21)= \\ =-3*(-20)= \\ =+60=60[/tex]
$b=-5*[-1+2*(-7+3*5)+6]= \\ =-5*[-1+2*(-7+15)+6]= \\ =-5*(-1+2*8+6)= \\ =-5*(-1+16+6)= \\ =-5*21= \\ =-105$

Sper ca te-am ajutat!