9.scrie ca putere factor comun dupa model
model:2 la puterea 5 +2la 4=2×2la a4+6=2 la apatra (2+6)=2 LA A4×2LA A3 =2 LA A 7
C.3×5 LA A 15 +2×5 LA PUTEREA 15=???
B)2×3 la puterea 14±25×3la puterea a
f)5 la puterea21-4×5 la puterea 20
dau 100 de pucte
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