Question

calculând expresia.8×5-4×[3+2×(1+1×2×3×4×5×0)]obtineti latura unui patrat exprimata in decimetri calculati perimetrul patratului

Answer 1

4*(3+2)=4*5=20dm
P=4*l
P=4*20=80 dm

Answer 2

8x5-4x[3+2x(1+1x2x3x4x5x0)]=
40-4x[3+2x(1+2x12x20x0)]=
40-4x[3+2x(1+0)]=
40-4x(3+2x1)=
40-4x(3+2)=
40-4x5=
40-20=
20

perimetru patratului = latura la a doua = 20x 20=400