Question

observand datele,descopera necunoscutelea)A×A×5=4×5;b)Y×Y×Y=1;c3×Z×4=5×3×4;Z=?;d)8×U×3=8×6×3;U=?.​

Answer 1

a×a×5==4×5

a×a×5=20

2a=20:5

2a=4

a=4:2

a=2

y×y×y=1 ??

3×z×4=5×3×4

3×z×4=60

3×z=60:4

3×z=15

z=15:3

z=5

8×u×3=8×6×3

8×u×3=144

8×u=144:3

8×u=48

u=48:8

u=6